Sure. Then engineers can hop out of their suits and repair it themselves, as well as give themselves unlimited ammo.
If they're classified as a vehicle that would really suck, because then they'd be grounded. Can't ride in a vehicle if you are one, but I love the idea of being able to kill people by running them over with my big MAX feet. FOOT STOMP!!
Please do, I'll enjoy killing people by blowing up their tank mine traps with emp grenades. Delicious certs, come to poppa!