unitmenu {
ID (?) = 0
UNITIDS = 0-999 1200-1499 12000-12999 
blocknumber = 2
block0 { 
   name = Trooper
   menuitem = light_attack_trooper medium_attack_trooper
} block0
block1 {
   name = Tanks
   menuitem = light_tank medium_tank heavy_tank defend_tank siege_tank
} block1