This seems like it wouldn't be hard to do. What I mean by "Add more variations of vehicles" is that models for multiple variants of vehicles should be added to give a more genuine and immersive feel to many of the vehicles. Stuff like Ghosthawk medivacs, turretless APCs for HQ and ambulance purposes, and engineering vehicles (for CSAT and AAF) for example.

A lot could be done with this, but atm it's sadly ignored. Adding stuff like these would not only greatly enhance the game, but also give a more finished feel to each factions' vehicle selection and appearance.