Chapters 1 and 2 are pretty similar, with the only difference being Cyberhorn. It is possible to speed run chapter 1 if you have crazed cow, as you can spam that and Valkyrie Cat to easily kill the base before the LeMurrs cause too much damage. For Chapter 2, use your regular team and you should be fine, However, take extra caution of the LeMurrs and Cyberhorn.
Chapter 3 is basically Elder Sloth + peons and LeMurrs. Keep on meatshielding and use longer ranged attackers to chip down the sloth.