I suggest to make it start working when 1 minute left. Half of the time I rush like stupid and half of the time I like to camp and rush last minute. When I camp and rush last minue, this thing gives away my position right away and enemy team kills me and then my whole team from behind. Not asking for much, just make it trigger when 1 minute left. I never run out of time anyway, and those who camped till the end of round before are still doing so.