They were arguing about the resupply bit of the M3. The other thing to note was the M3 was just about the ONLY thing used to bring troops in if there was a GV spawn to the base, so in order to bring the usage of other troop carrying things up, they dropped the M3's ability to do so. I actually like the idea. We'll see more SDK's and Jeeps now.
If anything though, bring in a truck to handle the resupplying part but also bring back the Bot resupply vehicles as well. Give the bot trucks a 30mph limit, add in an AA truck or two as well as a scout car of some sort (Puma anyone?
) so they are not completely defenseless against planes and GV's, give them a longer drive time to base (maybe start 5 miles outside of dar ring?), that may be interesting.