Does anyone else agree the the adrenalin boost does not last long enough.. i think it is about 5 seconds or something .. which for example is not enough time to deliver the fuel in terminal.. i believe adding another two seconds to the time that it lasts will make it much more useful. Not asking for much.. just 1-2 seconds longer so it gives enough time to complete certain objectives.. Some may think this will make it too OP but right now it is practically useless..

I think its perfect the way it is. If you make the effects to long then it'll be OP. You just have to know when to use it..

It feels like it only lasts for two seconds.

Check out the video, below. At 6:48 I receive an adrenaline buff, but before I can even reach the objective that is only a few steps away, I'm already taking damage.
It might be 5 seconds, but that is NOTHING in an objective-based game. I'm not asking to be invincible while completing an objective. I just want to be able to reach the freaking thing.

http://www.youtube.com/watch?v=lfdjbQglQBM

thats what im saying im not asking for a 10 second boost.. maybe add 2 seconds to make it worth while.. Idk a better time to use the adrenalin besides when the player is reaching the objective