How about

-Melee Weapon does +50% Damage
-Builds Hologram sentrys
-Sentrys can only be upgraded to level 2
-Sentrys fire lasers
-Lasers penetrate players
-Sapper do 50% more damege to sentry
-Sentry Does 25% less Damage
-30% slower repair rate
-1000000% More AWSOME