Please tweak Adrenaline and add test area for vehicles!

The Adreniline shot is pretty useless and quite frustrating to time correctly to complete challenges surrounding kills while the shot is in effect. On top of that its pretty much a useless gadget compared to pretty much anything else. hell id probably use the breacher launcher that is pretty lame also but kinda does something...

Are you guys planning to add a vehicle test area? It would be great to have one. Im in the legion of folks that suck at jets/copters and even if i get lucky enough to get in one in a match I'm very leary to do so as it means I'm gonna seriously hurt my side as i waste a cycle of using either option. IE a match is not an environment that you can learn how to use it and as a comparison its much more dramatic than say an infantry unit learning the recoil or bloom of a gun which there is a test area for. 

Ty for any response and im sorry if this was posted in the wrong section!