I don't think I need to explain what sappers are. Sappers could build defensive objects on the map, most notably next to the tower, or the mining area. These defenses could include the spikes simmilar to the ones in the safe area (would be breakable, or course), wooden walls/barricades, and spike traps (kinda like mines).
Cost per unit: 600 gold, 200 crystal.
Note: Only one utility could be built at a time, multiple sappers would just speed up the process. The damaged barricades could be fixed, but the sappers would have to go back and forth from the spawn area to the utility.
#Sapper unit
static ridge
open granite
Very interesting idea
open granite
