The Targeter is good for those times when the Storm Trooper Scope sight gets in the way. Then put it back on for the kill by hitting the Targeter key again. The sight is now over the head of your player character. Hit the Targeter key to remove the sight. They may believe your in the water using the M5B Unit.
Some equipment is available only to certain character classes.
Here's the scoop. Plain and simple, the Jet Pack allows the Mandalorian Class to destroy you from above. The JET PACK is a standard personal flying device. It recharges it's fuel automatically when the user is standing on a surface that has gravity. Maximum fuel is 500 units.