For my Red Alert 2-themed mod, Red Alert Zero;
My newer Higher-Detail replacement to the Flak Car.
The Flak Raider functions as both a high-speed APC (capable of carrying any 6 infantry units at a time), and also as a mobile medium-powered anti-air gun.
It is further outfitted with side-mounted grenade launchers converted to fire Flak shells with botched detonators; giving it a short-range weapon against ground nearby targets; making it quite dangerous for enemy infantry to approach and excellent for ram-raids.
Adding to this is the fact that infantry units are far more deadly in this mod- making a the Raider carrying them a much more dangerous opponent.
For the artwork- I tinkered around with modern BTRs and older Half-Track style BTRs- sadly a few attempts to combine them didn't work, so I went with the more 'truck-shape' form and worked with these instead- making it look a fair bit like previous Flak Track designs, but meh- it gives the right appearance where it counts.