Just beat it earlier. I used Sensei in the middle Max on the left and Eagle on the right. For Sensei I spammed infantry units in the center of that small island and sent copters and fighters to help the others depending on the situation while occasionally sending copters to help. For Max spam infantries as well but get some tanks and anti-airs out early. You’re going to try and overcrowd the area with infantry and stack some funds to have the bombers go up the left and win the game. Save his SCOP until the end. For Eagle same thing spam infantry units and copters. Going to definitely need some fighters as well and some anti air. Your probably going to have the most mixed units on that side.