Oberkommando is a Garry's Mod minigame. You can fight as the Combine or the Resistance, which each come with their pros and cons. Reinforcements are only allowed once the two sides have taken heavy losses and are midway into the end of the battle, and, to reinforce, you put the ONLY neccessary amount of troops on your side to win the battle. The type of troops to deploy is your choice.

Combine Strats:

1. Spam armoured units (striders, APC units, Hunter-Choppers, gunships, etc).

2. Spam Hunters.

Resistance Strats:

IF your opponent plays armoured:

1. Spam Rebel units with RPGs.

IF your opponent plays with Hunters:

1. Spam Alyx with a shotgun.

If your opponent spams both, do both of these. I won a round against my Combine friend doing this.

Hero units are different from normal NPC units, these are controlled by the player. For example, an RC-XD drone will sneak towards the enemy's troops and explode. You can only spawn one Hero unit at a time, unlike NPC units.