So I'm caught between the dilemma of having my soldier mobs have its own icon or portray them using images to allow custom visibility. I would prefer using images but I don't know if that is efficient, maximum number of mobs is 900.

So on case 1 we have just 900 mobs and on case 2 we have 900mobs without icons and 900 images attached to them.

Also do image offsets affect performance?? And if so at what point

Thanks for the help in advance, it really saves time to know if you're about to do something stupid that will not work.