The M56 is designed for being dropped into battle via parachute. As such, it's got literally no armor at all since the crew just sit on it like a cursed Harley Davidson. The gun wobbles like jelly, the suspension is even worse and the hand cranked turret rotates slower than the Sun around your Mum.
The redeeming feature is it's pretty nimble. Not fast! But it's nimble. Just hope that whoever you're facing has a broken space bar… or you'll be back in the hanger faster than a bi-plane in a top tier jet match.
Fun… just not for me! 🙂