Your cyborgs in Total Mayhem gain experience with each mission completed. Other than armor changing color, indicating a promotion, I noticed no benefits from experience. If promotions are to give visual cues, helping the player distinguish one character from another, assign a unique color to each cyborg. Another difference from Crusader is Total Mayhem cyborgs can fight without player direction. Three attack modes exist.
Defensive attack directs characters to attack weak opponents only, running away otherwise.
Using normal attack, cyborgs attack enemies of equal strength or less only. Lastly, with berserk attack. Add in a player-control override, disabling all computer AI initiative, and the interface appears a winner. During the first mission, where only two cyborgs were available, I could not help but admire the clean interface. The interface works well and game play is smooth.