Thank for reply. I only played once (currently my work projects overwhelmed). I didn't noticed how exactly towers looks. Did you say each level of towers use different sets of that hero? For example Kunkka tower (which one was it?) level 1 wears some sets, level 2 wears different kunkka set? I forgot how you solved it on WC3 eletd. Since WC3 haven't cosmetic items, did you changed tower model (hero model) when tower upgraded? Or did you increased model size when tower upgraded?