If player could control magnum's shooting power by simply using numpad it would make controling easyer and more realistic. And to "pay" for it just reduce movement speed of it's tube and add a delay after magnum shots. After a shot - tube would be knocked back few degree of angle (just to stop space bar clicking non-stop and do something else, for example return tube to it's previous position or something...) also knocking the tank back from all force it makes when shoting. And meabe adding a hull for magnum to stop tank's knockback. To make it work just make it heavy, strong, not slow like mamoth and add a control key to "root" tank but not prevent it from turning (if enemy hits the rooted tank, it doesn't turn- only if pilot wants to). Sniper could use this too because of all knockback it takes from smoky and thunder.

If player could also control magnum's shooting angle by simply using numpad it would make controling easyer and more realistic. And to "pay" for it just reduce movement speed of it's tube and after a shot - tube would be knocked back few degree of angle (just to stop space bar clicking non-stop and do something else, for example use numpad to return tube to it's previous position or something...). And meabe adding a hull for magnum to stop tank's knockback (another feature for magnum). To make it work just make it heavy, strong, not slow like mamoth and add a control key to "root" tank but not prevent it from turning (if enemy hits it doesn't turn- only if pilot wants to). Sniper could use this too. But other ideas of yours are good as well. Thums-up :)