So I copied your version of that file over the one I had, and now I can play the map... and it's a thing of beauty!
Not so bright as before, which gives it more of a sense of realism. Plus the things you've added fit in great.
Your newer structures allow players to be inside, offering numerous sniper options. You've also added access to a number of the homes... which I don't think was in the original.
Would have to go back and check.
Map is well pathed and combat is intense when it happens...
...though even with 8 bots running around there's often long stretches when nobody crosses paths with anyone else.
I can't edit maps anymore, but were I able to I can't help but see maps and think of such things.
For XV, were one to go there, I think keep it light. None of the big super-powerful tanks...
...but maybe replace the tank you've got there with the GK-1.
Replace the tractor with a manta, and the jeeps you have with the lighter of the XV-jeeps.
Tunnels seem ideal, to me, for putting UTDMT in:
Making it so the Titans don't have the full run of the map, but can throw boulders at anyone that comes too close.