I've hex-edited the clone commander cape onto Darth Sidious using the tutorial below. When I munged, I had no model munge errors, and it went smoothly. I load him in my map, and I crash. No severity three errors in my log, either.
JetJump = "10.0" //The initial jump-push given when enabling the jet
JetPush = "0.0" //The constant push given while the jet is enabled (20 is gravity)
JetAcceleration = "10.0" // for characters with jet jump, use this acceleration for in air control
JetEffect = ""
JetFuelRechargeRate = "0.0" //Additional fuel per second (fuel is 0 to 1)
JetFuelCost = "0.0" //Cost per second when hovering (only used for jet-hovers)(fuel is 0 to 1)
JetFuelInitialCost = "0.0" //4initial cost when jet jumping(fuel is 0 to 1)
JetFuelMinBorder = "0.0" //minimum fuel to perform a jet jump(fuel is 0 to 1)
JetShowHud = 0
JetEnergyDrain = 40.0
CollisionScale = "0.0 0.0 0.0" // don't take damage from collisions