Cloak and thermals.

[BlackPhoenix]

there should be more ways to find a cloaker, right now if a traitor with a cloaker can take down the detective and get rid of the HoS or his locker before he spawns, you're pretty much untouchable except for AIs, who can't harm you anyway
[/list]

AOE Flashing disables the cloak. But where can we get a flash if we're not security? Two chests full in robotics, the RD starts with one, robotics fabricators can make them I believe...