Linked Objects texture painting problem

Hi, Im using upbge 0.2.5 . And I using texture paint as blood decal effect to two Linked objects. The problem is when paint a mesh, the paint is effected another one.cuz I using same material for objects(Linked object group). But I using Linked object group for spawn Enemies.
Can I avoid this? Or shall I dont use Linked Object and painted texture?

I just only shooted right body