Avoid asteroids, garbage, and scan. If there is someone following you, do a 2-3 part task like wires or download bc they dont increase bar until the last one anyways. If you do a 1 part task and the bar doesnt go up its susp.

For the first kill or if they are grouped up relying on lights its fine, but besides that kill people who are alone near nav or reactor. If you kill near reactor, call o2 to move everyone away from the body, giving time for a possible second kill. If you kill near nav, call reactor for the same strat. Or if you are in a room with a vent and you know someone is near, lock the door and go through the vent.

Keep the person the group is susp of alive, and kill 1 of the people pinning it on the sus crewmate. Just try to make it so at final 5 (2 imps) or final 3 (1 imp) an accuser and the susp person are alive. Kill the fourth (1 imp) or sixth (2 imps) crewmate left, then pin it on the sus person. Easy majority of 3 if your imposter buddy votes with you and the accuser. Or if you are the last one just get the accuser to vote suspicious crewmate and it's another easy majority

Thats all the tips I have