For me, I have just change the value of this option: 2.2 "3D buffer resolution" to 1280x1024.
It's a question?
change it to lower value and start tactical battle

Nooo, it was just a response to the critical error that hamedhm have experimented. I resolved this problem like describe above in my system.
And I hope that the add-on will be released to ours countries !!!
We too

Oh yeah I can't wait ! This wargame rocks as ever !