Contracts are the single player aspect of the game. There are currently nine contract strings in total, each of them having five maps each.

The contracts are further divided into three acts, with each Act having three contracts apiece.

They are:

Total Fusion Reward Commander Unlock Contracts in it Maps in it
Act 1 Nuclear Commander 3 15
Act 2 EMP Commander 3 15
Act 3 HAARP Commander 3 15