Ideas only
1. A pack containing a terminal and five parasite-shaped machine drones for Techs,
Drones were thrown onto alien's head to control it for a limited of time then the drone will explode,
killing it and damaging other creatures around.
The relationship between alien health and control time is inverse proportion.
(ps: I just think that bashing Aliens/people/anything and let them fly like ten meters away with a shield bug is not a bad idea :D )