Carded 25th Serpentor body/helmet
DVD Serpentor "backpiece"
Marvel Universe Maverick holster

This is how I imagine Serpentor would look in the Resolute universe. The battle armor aspect would be that Serpentor is more of a general, leading troops into battle, and going in shirtless or in yellow spandex doesn't really cut it. Therefore he'd be geared up in some sort of armor that can take the impact of various weapons/shells, and so-on. He's equipped with a trusty dual-bladed dagger for close combat, as well as a pistol for any far off shots that he needs to make.