Seems JayHy17 wasn't kidding.
https://www.ign.com/articles/aliens-fireteam-meet-6-new-xenomorph-types-ign-first
"Though they generally behave like Runners, Bursters are more dangerous. When slain, their bodies explode into a lethal pool of acid. The species they gestate within is not yet known, but likely indigenous to [REDACTED]." In short, don't kill them up close.
"Though considered 'workers' within the hierarchy of a Xenomorph hive, Drones are opportunistic hunters, known for their ability to navigate air shafts seemingly too small for them. Moving silently through the walls, they burst out to seize and maul victims before disappearing again." In other words, kill them quickly before they run away, only to return and cause you bigger headaches later.
"Among the largest varieties of Xenomorph XX121, Praetorians are extraordinarily difficult to kill, with a bulletproof armored head plate used for ramming charges." Focus your fire or face the consequences.
"Prowlers prefer to leap atop their prey from close range, knocking them to the ground to be clawed or bitten. They can be easily distinguished from other quadruped morphs by their reddish, scalloped carapace." Even one of these guys can be extremely problematic amongst a large group of Xenos.
"Runners are pack hunters, preferring to attack in large groups, who charge in at high speed to swipe prey with their claws. Runners also use a distinctive circling attack to whip foes with their serrated tails." Shotguns might be useful against these beasts, given their speed.
"Unusually, Xenomorph Spitters prefer to keep distance between themselves and their prey. Though they have vicious claws and teeth, they dispatch most foes by projecting streams of powerful acid from glands in their mouths." This is Dennis Nedry's least-favorite Xenomorph.
