Defense Warfare Asset - Lav 25

This is the Lav 25, from the game I'm working on - Defense Warfare. The game engine I'm using is Unreal Engine 4. Asset details: the total mesh triangles are 21 286. As with the Gatling gun, I tried keeping the number of triangles low, despite them not being as important for the performance as the number of materials each mesh has, and the mipmap settings of the textures. An interesting thing to point out is that, every vehicle's movement is calculated 60 times per second, but the tires' rotation is calculated only 24 times per second. Practically the player wont notice any difference, but the game's performance will.
You can find out more about the game on my DeviantArt page.