I used to be a die hard far of AoM, AoE, etc over the years. Just finally built a new PC and bought the most recent version of AoM. In just my first play-through alone on single-player, Moderate to start out I found that Red is able to create an infinite number of Titans. Not even the NPCs were able to create more than one in the past from what I remember and can find. I killed two of theres, then Green killed two, meanwhile Reds fifth titan emerged almost the exact moment their fourth was killed by Green. This makes the game EXTREMELY unfair, no one can keep taking out titan after titan while also finding all the other NPCs.