Depending on the random map selected , the player may potentially bolster his forces with either artillery units or armored units .
Random maps present an opportunity for the player to win upgrades for his side as depicted in the map description .
Depending on the random map selected , the player may potentially bolster player 's forces with either artillery units or armored units .
Random maps present an opportunity for the player to win upgrades for his side as depicted in the map description .