If you mean a scorpion...which looks like a tank...just use the left thumbstick.
Check the first four (or the ones that say 'I can has').
I think those videos are fake to date i have tried 8 times to get in one and i never prevail.
No. Theyre real, just beat the top off, and shoot the guy inside until hes dead, and youll be able to drive it. Its pretty helpful on "The Covenant."
And thats the problem when you beat it, it blows up.