thor did in thor 1, and the mcu does show tony as a master mind and strategist in fights other points, you're just not see it as it subtle and not bashing us over the head and the suits are being upgraded and again you're not seeing it and he cant use the special suit as he destroyed them and what he gonna do, fight cap with a construction suit, that suit is designed to fight 'normal' heroes like cap and not extremely powered heroes like hulk. one more thing, saying they're all the same suit is like saying jeans and a hoodie are the same as a suit and tie, they're not and the 'same old design' hasn't failed him so far