Eh, I'd have to give a -1 to mines.
However, adding a Sherman Crab with flail would be really, really fun for other purposes. Imagine how much you could annoy squaddies or spawn-camping teammates with that thing whipping away at their silent, hiding, ambush-ready tiger.
Also I'm sure you could make some awesome special events with it. 1 Jeep, 20 Crab Shermans, and an enclosed space. Winner is whomever can stay alive longest in the jeep.