That warthog needs a 3" suspension lift, you could just use some body blocks to lift it up, but if you welded the skeleton to the frame you need to do a much more painful and expensive task of installing larger suspension, maybe pull some bigger springs off an older Defender, they have been known to raise up pretty high, otherwise, use suspension blocks, but be cautious on how you use them.
As for the warthog itself, nice touch, needs some work on the interior being better coordinated, but its a very good start!
Now, as for the armor and weapons I have seen made, nice work, but those Spike Grenades have fins that are too large, they need to be about 8" long and have a 4" downhook on them. The general size of the grenades are good though.
Oh, and when your filming, buy empty 30-06 casings and have them fly out of the guns, large shell, and projectile, will make it more realistic.
And please rememeber to use a theme song, I have one that was made for my team I'd be more than happy to donate (its an orchastra/chorus mixture), it is 100% original (about 4 minutes long).
I am a camera man, script writer, and apparently a good detail worker, so if you need any cinimatic advice, just ask me.