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I'm thinking of a ship from the DOOM Faction or class in Kantai collection/Azur lane that has weapons from DOOM 2016, 2 Chainguns on corresponding sides with the 9-barrelled extension, their bullets are different and can alternate between Armor-piercing or mini-nukes that on explosion, spray acid,
Shotgun with both the rapid-fire and the grenade extension
Super shotgun with a meat hook but can be renamed as an anchor,
Several rocket launchers that shoot pure concentrated plasma or missiles that when blown up, turn up to 10 more smaller missiles that home in on the target.
A Gauss cannon for artillery or for lobbing explosives at the enemy
2 Chainsaws, because why not? It most definitely will complement the Anchor or the meat hook for the shotgun
2 plasma guns that should be able to disassemble and connect to make a special attack, the BFG (Bug fucking gun or Bio force gun, I personally prefer the second one) Shoots in a straight line, doesn't target friendlies but instead heals them with the bio-energy while disintegrating all enemies in its current vicinity, taking their Bio-energy. Can instead be held in place, obliterating the enemies surrounding it along with the endemic life surrounding it, absorbs the energy briefly supercharging all his attacks to have the force of an Iron needle dropped from heaven. (Search it up if you want to see how destructive it is, Hint: One needle can destroy a state or a continent for that matter)