U know what I would like to see done with vehicles.. do away with the whole armor and armor piercing concept. Make a flat global rule that only heavy weapons can damage a vehicle on a 4,5,6. Give vehicles a "Vehicle Save" based upon their armor value. 13 and 14 would be 2+, 11 and 12 would be 3+, and anything lower would be 4+.
All walkers should be turned into MCs like the wraithlord. It just makes more sense. Course I know it will never happen. Im not argueing this.. its just my thoughts. Its something me and 2 friends of mine have been trying out in games and it kinda works. No real problems so far.