Sentry Gun Level 1

Metal Cost 130
Time To Build 5 Secs
Damage When Detonated 50 Units
Weapons Machine Gun
Damage Per Second 75

Although best avoided this sentry is actually pretty weak. faster classes should be able to run right past it. It's main danger is being out in the open with nowhere to hide or being stuck in a corner - the shells push you backwards so if you're cornered chances of escape are pretty low. If you see this quickly enough, most classes should be able to take it out with projectile weapons without losing too much damage. Of course, your best method of attack is using grenades.