I decided to give game-pads a shot. Don't play consoles my self because I don't own one so I am no expert with controllers.
But as rookie as I am I am not blind to issues I have when playing with controller.

1) Auto correction.
The game snaps you in 90 degree angle when you are close to it. Please remove the snapping because It's impossible to snipe with it.

2) No double binding.
With so many buttons left over in my game pad I wish I could double bind some functions such as crouching. While in most cases you don't crouch and jetpack at same time, some advanced maneuvers require it.

3) Buy menu tabs
The new feature that came with campaign was tabs in buy menu. Please have them closed by default or make it special case with controllers. Browsing the buy menu gets bit complicated otherwise.