You mean the premium vehicle that hardly anyone bought and I’ve only seen in a match one time over a thousand played?
Is completely different than letting anyone/everyone with an engineer build one where ever they want on a map. Can easily see half a team camping in the back somewhere dominating the opposing team.
Incase you forgot as well, you can only have 2 vehicles out at once in match.
It would be mine slot, but not a weaker TNT charge, much stronger actually. The Japanese have the Ni05 mine which would be the rough equivalent, and while this lacks the ability to charge with the mine and has 40mms less penetration, it would be on par with it, and not unbalanced.