So Im not sure if this is a common problem or not but it has been bothering me since me and my brother started playing Cortex Command

I always play with Mouse & Keyboard and my brother plays with a gamepad (Xbox360 controller). Everything is working well except for one thing:
Everytime when my brother starts moving (or just tilts the left analog stick), my aiming resets completely, making sniping nearly impossible for me.
However the same doesn't happen to him when i press any of my movement keys. Can this be fixed with something or does it need patching?
Any information or help would be greatly appreciated

This is a well known problem with Cortex Command, and sadly there is no fix for it.

Use two controllers instead of just one, as far as I remember it doesn't happen then.

Oh, well too bad then
Fortunately playing with a gamepad isn't gonna be a real problem for me