Double click your actor under the Actor Classes Menu
Go to Display Advanced
Change Mesh to something else (ex SkeletalMesh'Clone.CloneCommando' to SkeletalMesh'Clone.CloneTrooper')
If you want to add a trooper to the squad, stick a trooper into the level, and change both bCanbesquadmember and bOfSquadInterest to true. Do NOT change bCanPreformSquadCommands to true, or you game will crash every time your order the squad to do something.