I really hope aliens will be playable and have some customisation
Pretty sure marines will have tons of customisation, but i dont think xenos will be a playable faction.
If this is gonna be like destiny, we will have humans vs xenos (IA), with tons of missions. But add black goo + enginners to the xeno faction, so enemy types will be endless
For Aliens being a playable game, it will require some kind of node/map control...like planetside, or wwii online campaing kind of games...i dont they will choose that kind of gameplay