The Primers' Invasion.

The Primers have invaded planet Earth, and brought with them a massive and diverse army. Humanity is in the midst of defending itself as best it can, and while it may seem like they're slowly losing despite the Primers not using everything they have, humanity won't go down without a fight.

The main military force, the Earth Defense force ("EDF" or "E.D.F." for short) is a global power dedicated to fighting off these aliens. As such, they have a large variety of their own forces. Additionally, all infantry weapons have practically limitless ammo to reload from. Nanomachine-based equipment, however, is rare on the field, due to how complicated the armor-repairing, injury-treating micro-machines are. Only Rangers and Air Raiders with special authorization are allowed to carry such dispensers (Reverse Guns for Rangers, which fire nanomachine capsules, and Life Vendors for Air Raiders, white cylindrical tankers that automatically deploy nanomachines to support nearby allies). Most missile launchers can lock onto multiple targets.

Rangers are the basic footsoldiers, wielding standard infantryman weapons, but taken to the next level. Assault rifles have over 100 bullets per magazine at MINIMUM, disregarding the several types of said assault rifles (PA-11 is standard, the Raven series functions more like sub-machine guns with literal hundreds of bullets per magazine). Shotguns can penetrate multiple targets with each shot. Rocket launchers like the Grant series and the rapid-fire Cascade series can fire multiple rockets before reloading (up to 5 for the Grant, and close to 30 for the Cascade), while the Goliath rocket launchers instead fire a singular, extremely powerful rocket. Rangers also have various snipers, from rapid-fire Dunkels, to the all-rounder KFF-50, and even the slow yet overwhelmingly strong Lysander series. They even have grenade launchers, both impact-based and timed, explosive and incendiary. They can also use hand-held missile launchers and deploy sentry guns (either machine-gun sentries, rocket launcher sentries, or flamethrower sentries).

Wing Divers are a female-only type of soldier. They are scantily-clad to reduce weight, and fly using energy-based jet-packs. The same Plasma Core that powers their jet-pack also powers their weapons, which consist of lasers, lightning guns (in the shape of bows, minus the sniper variants), and plasma launchers that function like bazookas or impact grenade launchers. They also have strange energy-based homing weapons that are either fast and weak, or slow and strong. Notably, their fast speed and great agility means they can use their Rapier weapons quite well, which are devastating weapons that fire large scatters of lasers ahead of them with very short range.

Air Raiders are rarer, but are much more technically-adept. They can call in airstrikes, use drones, and lay traps using mines and sticky-bomb launchers. Mortar Drone attacks and Artillery strikes are called in using flares. Bombing runs (both drone and plane-based) are called in using a communicator or control device. Missile-based airstrikes and satellite-based laser attacks (Spritefall, which is a barrage of lasers around a target area, and the Satellite Blaster, which is a sustained laser beam that Air Raiders can redirect until the satellite's weapon has to cool down) are called in with a laser designator (basically a large laser pointer). Airstrikes based on gunship weapons like autocannons and massive-caliber strikes (as well as various bullet-based drones) are called in with beacon launchers, which fire little markers that stick to targets. Air Raiders carry support equipment, too, including forcefields and tankers that can boost allied firepower and reduce the damage friendlies take from enemy attacks.

Fencers, on the other hand, are often front-line walking tanks. They wear full-body armor, called a Power Frame, that augments their abilities majorly. This lets them carry tank-grade weapons (carried under-arm, can even be dual-wielded) and protects them far more than other soldiers' armor. Fencers can use gatling guns that can fire thousands of bullets before reloading, Dexter shotguns and Galleon heavy machine-guns that have overwhelming firepower, shoulder-mounted mortars and vertical missile launchers, and even Gallic Heavy Cannons (which fire armor-piercing shells that even put tank cannons to shame, able to destroy buildings with ease). Fencers, despite the heavy weight of the Power Frame, are actually quite nimble, second only to Wing Divers. Fencers have a thruster pack on their back, which lets them dash horizontally multiple times in quick succession, and even boost themselves into the air (even while already in the air, too). This means Fencers are actually quite capable at close range, thanks to their variety of melee weapons. They have Blasthole Spears, another under-arm weapon, that launch out and pierce through enemies, injecting explosive plasma into each of the ones they pierce, before retracting for another use (Flashing Spears are a rapid-fire variant, and Blast Twin Spears are a special arm-mounted variant with their own extra booster and two spears instead of one). Other melee weapons include Power Blades (swords that fire small, short-range "slices" of energy through the air), Force Blades (car-sized swords that take more effort to swing, but launch much larger "slices" that go further, with Dynamo Blades capable of launching slices as far as a sniper's bullet), similarly-sized Vibro Hammers that send powerful shockwaves through the ground, and the almighty Vulcan Hammer (which, when fully charged and swung after fully spinning around, creates an unfathomably powerful yet precise explosion in-front of the user. This, too, is car-sized). The force of swinging a fully-charged Vibro Hammer or Vulcan Hammer causes the air around the user to temporarily act like a forcefield, though this effect ends when the swinging stops. Fencers, notably, can also carry large handheld Deflection Shields that use energy to outright absorb attacks, making them incredibly tough. Shields have to cool down after blocking too many attacks, however, but they can still absorb an absurd amount of damage, especially the even larger Tower Shields. These shields also have the ability to send out a pulse that reflects enemy fire back at the things that shot them, though this generates heat too. Fencers don't use flamethrowers.

Rangers, Air Raiders, and Fencers are typically all males, with essentially zero women in any combat role other than Wing Diver or aircraft pilot.

Apart from the standard tanks and fighters, the EDF also has several unique vehicles, which can all be air-dropped mid-battle at the request of authorized Rangers and Air Raiders. The simpler vehicles (Kepler, Nereid, and Free Bike) can be requested by Rangers, while the more complicated/unique ones can only be called in and effectively handled by Air Raiders. The transport aircraft Noble is what delivers these vehicles, flying in with its four adjustable thrusters and dropping these vehicles via unfolding crates. This transport aircraft is for vehicles only, and is NOT a personnel carrier.

The KG6 Kepler is a dedicated anti-air vehicle, boasting two powerful machine-guns mounted on the sides of its turret, a radar dish, and a quick rotation speed for said turret. Can be requested by Rangers.

The "Free Bike" is actually a sleek, military motorcycle with machine-guns mounted on the front. It's fast, but takes skill to actually use as a combat vehicle, instead of just a means to get around. Can be requested by Rangers.

The EF31 Nereid is a Ranger-requested helicopter with an auto-aiming autocannon just beneath the nose, and rocket pods mounted under the wings. It's less maneuverable than the other main helicopter, the N9 Eros, a faster helicopter used by some Air Raiders, with forward-firing autocannons mounted on the wingtips and missile launchers under it's own wings.

The Epsilon Self-Propelled Railgun (shortened to just "Epsilon" most of the time) is a high-tech, durable tank-like vehicle with a main gun twice the length of the vehicle itself and two additional machine-guns on its turret. This sniper of a vehicle has immense penetration power, and its railgun is even capable of outperforming the Gallic Heavy Cannon in terms of sheer power-per-shot. Can be requested by both Rangers and Air Raiders.

The B651 Titan, on the other hand, is a massive beast, a nigh-indestructible tank that's at least five times bigger than a normal tank (and is probably even larger than THAT). The Titan's main weapon on its colossal turret is a battleship-grade main cannon, called the Requiem Cannon, which is an extremely powerful weapon that causes massive explosions. The front of the hull has two machine guns, but the massive turret on the Titan has, itself, two more independently-manned turrets, each one armed with a missile launcher and smoothbore cannon. The Titan can only be requested by Air Raiders, and even then, they need special permissions.

The Naegling Self-Propelled Missile Launcher is a much frailer vehicle meant for the back-lines, providing support by locking onto multiple targets with a large, back-mounted missile launcher that makes the truck-like carrier rather top-heavy. Can be requested by Air Raiders.

The Powered Exoskeleton Nix (usually just "Nix") is a bipedal mech with two arms. These vehicles are about as tall as a 3-4 story building. Arm-held weapons include revolver cannons (basically giant machine guns), flamethrowers, and rocket launchers that have a decent rate of fire. Shoulder-mounted weapons include large howitzers, missile pods, time-based grenade launchers, or Dispersal Howitzers (howitzers that fire a large spread of explosives instead of a singular one, Fencers can equip a smaller version of this on their own shoulders too). Nix mechs are actually much tougher than a tank but also more complicated and require a slightly-higher level of clearance. REVOLVER CANNONS ARE EXCLUSIVE TO THE NIX MECHS. Can only be requested mid-battle by Air Raiders.

The EDF has an Air Force division, though it's mostly comprised of ground-attack craft and bombers since most of their fighter jets went down during the first days of the invasion. These craft include the Combat Bomber Kamuy, Phobos, and Heavy Bomber Vesta. Kamuy bombers are the fastest of the group, but also have the lightest payload, meaning they usually perform strafe runs with guns that aim downwards instead of actual bombing. Phobos, on the other hand, carries heavier payloads, with each individual bomb in a bombing run creating huge explosions, though Phobos bombers can also drop cluster bombs if requested. Heavy Bomber Vesta is the slowest of the bombers, and is most often seen dropping huge napalm bombs that create large lines of flames. The EDF's primary bombing method is carpet bombing, and usually with groups of bombers. Kamuy's strafe runs can range from 3 bombers flying side-by-side, to 18 bombers strafing from various directions towards the designated point. Phobos runs range from 1-4 bombers, usually side-by-side, and Vesta usually only deploys with 1 or 2 bombers, so that their napalm creates a "wall" of flames. The EDF also has gunships for when sustained support is needed, with Vulcan guns for a column of bullets as well as various calibers of cannons, ranging from the 105mm cannon for a spaced-out barrage of large shells, the 120mm Neutralize Cannon that fire like a shotgun, the stronger 150mm and 180mm cannons for powerful and precise shots, and the Rocket Cannon when explosive ordinance is requested. The gunships are usually too high int he air to be seen with the naked eye, which usually keeps them safe from enemy attacks. These aircraft can carry out attacks on their own, but usually need an Air Raider on the ground to mark targets and make requests when support is needed mid-battle, if only to prevent friendly-fire.

Finally, the EDF has two massive vehicles designed (or well-suited) for fighting Kaiju like Erginus and Archelus. The EMC (Electromagnetic Material Collapser) is about the size of a Titan, far more fragile, extremely expensive, and has a huge beam cannon turret specifically designed to wear down and kill whatever Erginus it has locked on to. The other "Kaiju-Killer" is the Gigantic Unloader: Barga. Barga, originally a bipedal humanoid crane (slightly) taller than even the 72-meter Erginus, has been shown to possess the sheer brute force needed to harm and kill a target as tough as Archelus. Barga, of course, has nothing but its large mechanical fists and feet to attack with, and is incredibly slow. Military versions are being produced, but they still don't have guns.

The trump card of the EDF are it's three Submarine Carriers. With the names Siren, Epimethius, and Pandora, these absolutely massive submarines also function as aircraft carriers, armed with several battleship turrets, as well as Tempest ballistic missiles and swarms of smaller yet much faster Lionic missiles for Air Raiders to call in.