Very sorry for such noob question but I am just fed up with it!! 
Both Radiant plugin for landscape and EsayGen outputs a terribly low value of triangles! 
I am trying to make a fine landscape on the 4096X4096 map and cannot find a way to make it in one step with any of the avaliable softare. And the triangles are something like 512 or 256 in length. Even inputting a 512X512 bitmap to Radiant plugin didnt give any improvement…
(and how to make so that glass window with 50,000 hitpoints cannot be destroyed by panzer in 1 shot? the bullet just flies through it)
Any help will be greatly appreciated.