Have a barracks, then create a troop. When the sword logo is complete on the barracks screen, cancel the troop. If timed correctly, your money will be given back and a soldier will be sent out.
This is useful if you have no money, but it is slow to do.
When playing Battle for troy,press
CTRL+F6 key while in the game to reveal the whole map.This will allow you to build
buildings any ware in the map.