Shouldn't you look in your install folder to see what the game is limited by?
D3DX9_40.dll
Then enquire what the projected period into the future is for basing the game to that version of DirectX. The game is written to the Windows DXAPI which is allowing so many divers PC to run it from XP, 2000, vist, 7 and 8. 400 to 500 players in an arena with some of the best aircraft physics in the industry.
Next year March or April extended support for XPsp3 is finished. Right now even ATI has drivers in beta that address an issue with DX9c.
I doubt this pitchfork and torch mob is going to sway HTC. Someone like the OP does this at least once a year to stir up the eyecandy freeks into a mob to assault HTC about maps, custom textures, and seperate arenas for the Mocho PC crowd versus the 10 year old crap PC crowd. Since this is a kiddy game, the class warfare aspect based on the PC haves and PC have nots seems rather narcasistic and puerile while not having any clue to how the program works or the HTC business plans 5 years out.
Can the map presented by the OP be constructed without custom objects? Can that map as is support 400-500 players without killing half the PC's with timeout DISCO's and throtteling down the FPS near custom cities for another quarter of the players? Do any of you remember that the game engine is Windows itself and why so "many"(paying customers) crap PC's can play in the MA at the same time within specific guide lines for map construction?
Same mob, ptichforks, and torches as last year. Same version of DirectX.
From: The Great Act of the Arena's.
by: the Unknown Chronicler of Gaming.
Act156, Scene 5, 13th year of the new era.
The yearly Festival of the Mob Wants is upon the city.
Mob: Caesar, once again you have not given us our own circus with real scenary amongst to frolic. We will run rampant through your streets again and threaten you with leaving Rome while holding our collective breath.
Caesar: The chirping of a cricket. A lone dog howls in the distance. Curtains remain closed. Oh!! Its Mob Wants day.
Mob: Do not ignore us this time as you have the last 13 times. We are more serious than ever. We have a new and more clever leader to remind us of what "He" wants from you.
Caesar: The yearly whine has been duely noted and recorded. Yes, Yes they still want a Holo Deck from the 23rd century. Good and better. Two centuries is a very long time to hold their breath.