Sort of a small companion idea. Like maybe a Manhack or a resized city scanner with a gun stuck to it.
You build this thing, deploy it, stick a battery into it. And let it fly about you. I think it'd be great for the scavengers who often don't always have protection with them so they could literally get a protector built as they scavenge for supplies if a guard can't be spared to help them. They could upgrade it as well with bigger battery life so they last longer. I'm thinking like 45 damage per shot, and they only attack zombies and Antlions.
Anyone else care to make any suggestions?