Building 2 Trading Posts isn't necessary in this level, just destroy the Command Post and Town Center. I also create a lot of Maya Holcan Spearman since they have a high Siege Attack amount. The ship takes care of the shipyard and a little tiny fishboat for some extra XP. The rest is just rush and crush. One thing to note at the gate is that I put Morgan Black in front so that the Outpost targets him in order to keep my other units (Especially the Maya Holcan Spearman) alive. By the way, did you also notice that 1 Maya Holcan Spearman suddenly started to attack the Outpost instead of the gate? Grrr...