space marine
Master Chief
In Halo, MCPON John-117 is Master Chief, a faceless biochemically and cybernetically-enhanced supersoldier who was raised from birth to be a killing machine. He’s rarely seen without his armor or helmet.
Pvt. Vasquez
In Aliens, Private Jeanette Vasquez (Jenette Goldstein) is a smartgun operator who’s sent by the Marine Corps to deal with a space colony’s Xenomorph infestation. She’s tough as nails and doesn’t take crap from anyone, a useful skill when you’re in the same squad as Private Hudson.