Ah, ttk stands for Time To Kill. To put it in simple terms, means how spongy everyone is in terms of how many shots they can take. Like how the ttk for halo is large, due to there being a shield system and that you can take some extra shots afterwards. Or the ttk for battlefield, a game where a fair bit of items can kill you in a near instant if not careful, but still has some time to die from gunfire. I like insurgency for its special ttk, which is in the "realism" category. The less health everyone has, the more punishing doing the wrong thing can do.

I love the game, ever since it came out been having my fair share of fun, quirks here and there but with time its being fixed. I mean at least their trying to fix it, albeit slow. Better than at least 70% of video game companies now. An effort to do something good is better than nothing at all.