Tip for officers (and I guess any class)

You can change your 'perk' midgame , so for officer this is really helpful for instance when attacking a objective, if you're needed urgently there to help spawn for defense/offense, simply switch over to the perk that allows you to spawn with teammates at objectives.

Once that intense moment has passed, and it's no longer needed that you're able to easily spawn near the objective, then simply toggle you perk back to another (e.g. faster cool down on the whistle)

Maybe other folks already know/do this but it took me a while of playing to realize the potential/value in it. Most FPS force you to lock-in a perk pre-game and you can't then adapt it on the fly based on the situation.

Is this as useful for other classes as well ?