>>96164999
>A tank, built for giants, would naturally be fucking huge
Yes
>so mechs would have a role as the 'infantry' of the setting
Yes and no while being a mix of both. What I was suggesting is that mechs are mechs of the setting. Even while being repurposed power armor, theyre still a machine. You could have a mech that fullfills the role of a space marine. But a mech doesn't feel pain, it doesn't care if its dismembered, it doesn't even need to physically carry a weapon since it could have Intergrated weapons or its weapons are mounted on various locations of the body. If I was making this sort of setting, I'd have older mech be more general-purpose and more akin to power armor with a little man inside. So functioning hands that carries a main weapon that can be swapped out as roles change, with any sort secondary weapons or equipment being clear add-on packs. Meanwhile newer mechs are made with being more mechs in mind. Intergrated weapons are common, more likely to have weapons spread out across the whole platform, less human shaped overall designs. And definitely more specialized to specific roles. You can have absolute juggernauts who are effectively budget tanks, mobile Artillery, or even jetfighter-styled mechs like the ones from macross. Think Zaku vs Madcat

Also I was assuming OP wanted tanks to be somewhat rare. Like a super weapon from Ace Combat. Or at the very least, not something you would find far from a supply line.