[kaffis]

Allow it to transport 1 or 2 more MAXes (but each extra MAX transported decreases REXO capacity by 1), and make the MAXes in semi-open sockets that let them shoot their own weapons (and ammo) as "gunners."

Use resource scarcity and requirements to balance ground transport with galaxies and dedicated 1-2 man combat vehicles (mosquitoes, reavers, MBTs, lightnings) and thus keep ground transports as the most cost-efficient way to get X number of people from point A to point B, where, say, X > 4. Make sure that ground transport is suitably fast, and that new spawning mechanisms (spawn on squaddie, spawn on galaxy, and, for that matter, AMS) don't simply obviate the need for transport the majority of the time.

Give ground transports enough armor that they're not considered free kills and rolling coffins. Remember, a full Sundy is 10 times as tempting a target as a Lightning, and is going to draw fire for that reason even if it's less of an (immediate) threat.

Aside from those, I don't have much more input, except to say that, as a long-time bus driver, I support any and all efforts to make people want to climb aboard when I pull one.