Hell yes.
In a perfect world Pandemic would support this game with DLC along the lines of Crackdown.
- Vehicles parked/landed at PMC headquarters should stay between gaming sessions.
- New game+ mode.
- Allow firing from vehicles for passengers at least.
- Allow movement when holding beacons and support smoke.
- Increase stealth and movement speed when crouched.
- Allow cash to be spent to upgrade air-strikes, from say, smoke and beacons, to satellite and laser guided versions.
- Allow a player to "save" their current kit or more as "Player Favorites" loadouts.
- Add a zoom mode to vehicle mounted weapons.
- Add co-op competitive missions. Something along the lines of Mafia Work mode in GTA4 and I'd never leave the house
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- Allow enemy PCs to be passengers in faction vehicles without automatically blowing your disguise.
- Remote control drones/vehicles. Oh the possibilities.
Hell, I could go on for days. C'mon Pandemic - there is still a ton that could be done with this game.