I'm glad you got the mod to work Warman, and got a chance to play last Sunday. I watched the replay of the battle where Tosa, CBR and you defended vs Methias, Tomi and R'as. I noticed you closed up very tightly with CBR, who had set up on the high ground forward at center which shows you're thinking in terms of supporting your ally which is good. Keep in mind that you can keep more separation between armies in Samurai Wars than in RTW, and that overlapping units will not stay like that. One of the units will move until it's not overlapping another unit. I don't know if that happened in this game, but it's something players try to avoid.

I think the attackers have two strategies they can adopt given the set up and terrain. They could focus a full scale attack on CBR at center or they could doubleteam Tosa on their left where the ground is more favorable in an attempt to draw the defenders off the central high ground. The second strategy might require that R'as move to center so that he can protect the center attacker's right flank, and so that he himself doesn't become isolated. By observing the attacker's initial movements, it appears that Methias on the left wanted to adopt the center attack strategy, but Tomi in the center wanted to adopt the left side attack strategy. In the end, Methias attacked alone, then Tomi engaged and finally R'as. This strategy didn't have much chance of success since each army was routed before the next one engaged. An echelon attack can be successful, but the timing is critical.

Echelon Attack - A refused advance on an enemy position, meaning that the advance occurred in sequence from right to left or vice-versa in parallel but nonaligned formations. Ideally, an echelon attack would compel the reinforcement of those parts of the enemy line first assailed thereby weakening the latter parts and increasing the chance of breaching them.

Source: "Historical Times Illustrated Encyclopedia of the Civil War" edited by Patricia L. Faust and "The Civil War Dictionary" by Mark M. Boatner III.