That is an awesome Idea, a spec medic. It would kinda slow so he could be ran down and caught. keeps is distance, but revives the bodies that players leave behind.
And really, a spec that pick up weapons and use them would do a number on the campers. being up in the 3rd floor in foundry and then a (what ever the new spec is call, maybe gunslinger, lol) comes around the corner with a gernade launcher, or a shotgun, suddenly he is scarrier than a FP for campers cause he doesn't have to mindless run at the bullets, he can stand and shoot back.
My immediate knee jerk reaction is this seems rather intelligent for a ZED... I mean as far as I can tell the Siren and the Stalker are the 2 most intelligent specimens and they aren't exactly rocket scientists.
This seems more like a boss specimen rather than a clone with brain damage...