I feel with the Zed Time that taking it out really does become a bit of pain in the ass. Why should I be penalized for having good aim and getting head shots, triggering zed time, then having to waiting a few seconds for it to get out Zed Time. I find with the SWAT and Commando perks that it happens at most 3 times a wave, minimum once. I do agree that the in game time is broken but I feel fixing something that is broken in game wont fix it overall.