His tagline is "He stalks the world's most dangerous game", but unless that game is deaf I think he's got two very large, very bulky, very obvious problems to deal with before he's stalking anything but a can of metal polish:
Apparently you have to have flunked out of the Fashion Institute to be called "Manhunter" (see my entry on DC's attempted relaunch in the Nineties), unless you happen to be from Mars where, let's be honest, they're very snazzy dressers. Or were, before they all died. Best looking corpses in the solar system though, you have to give them that.
Anyway, this particular Manhunter is all too Terran, and someone has, in what I can only imagine is the world's best fashion-related practical joke, convinced him that wearing weapon racks strapped to your shins is a good way to be a stealthy assassin. I bet he was too dazzled by the glaive-length push-dagger they also gave him (which naturally wouldn't fit in his leg-holders) to object when they were shown to him. "Yeah yeah, metal sword sheaths, check, giant sleeves, whatever, have you seen the SIZE of this thing?!"
I can't decide what's going to give him away sooner, the flapping of his sleeves in the wind or the clanking of his leg-born display cases as he attempts to run over the rooftops. He'd have to waddle like Howard the frigging Duck to avoid banging those suckers into each other, not to mention the effect fifty pounds of metal strapped to his feet is going to have on his top speed.
I've seen a lot of impractical super-hero get-uppery in my time, but I think this might be the worst of all. It's a shame because the overall costume isn't bad, it's just the idea of an elite assassin walking around sporting the display rack from "Bubba's House of Discount Swords" for boots that ruins it.