first off, that is a stuff-load of mesh objects. usually you can combine meshes that use the same loc-rot-scale and be okay, as long as they have the same origin. I am not sure what you are doing here, but it appears you are trying to create a player-type?
Try to limit your need "separated" shapes, and remember to set sequence priority, otherwise animations can overlap. For instance, walking while triggering Self Delete will cause the animations to combine if they have the same sequence priority. Just remember, higher priority sequences are played over lower priority sequences. In my experience, the death sequences should usually have priority over all others.