I played a master techician the other day. Most useful feats where multitooling into security doors, unlimited healing from red computer consoles and fixing elevators (with only three multitools - kraxftp!). I liked him, alas he was not very skilled with guns and rifles, and he met a horrible death during his attempted ascend in the colony.
How does one, by the way, take screenshots of post mortems in a easy way? F10 fails to deliver in post mortem (but works well when actually playing).
I also wonder why the colony and it's military storages is full of ancient weaponry. Like a, to us, modern military installation full of long rifles and flintlock guns :)