Basically, on the planet lv-426 there lived a hybrid between human and xenomorph named Xavier along with his xenomorph friends shade and eren two xenomorph warriors a lurker named Isaac a crusher named crusher a spitter named Spits and a albino praetorian named Blizzard or blizz for short, they live like family together until one day Xavier was growing tired of living on the planet until he found a drop ship that took him and his friends too a larger ship in space that had to coordinates to remnant that he felt intrigued about and so began their journey to remnant but when they arrived they crashed into the shattered Moon when the ship crash landed where teams RWBY, JNPR, cinder emerald Mercury Adam and neo went to investigate the crash site and they were in the laboratory both friend and foe fought each other, when someone accidentally bursts open I containment unit spilling green liquid substance all over them thus transforming them into xenomorph hybrids when that happened xavier and his friends found them so now he and his companions will help the teams along with cinder emerald Mercury (who have amnesia due to them being hit on the head hard.) Neo and Adam to help them get accustomed to their new bodies but unknowing to them a xenomorph grimm hybrid have been spawned and made its way into the grimm lands with a royal facehugger and got to Salem so s*** just got real now they must band together to face this threat before humanity and the faunus face Extinction.