Battleborn is derived from MOBAs, I think this is something we can all agree on. The MOBA genre is the foundation of how this game was designed, and being as such, Gearbox has designed and classified each character to play a certain role in the game (at least so it seems to me).
Having said that, the “labels” set upon any given character are indeed not set in stone as to what they can or can’t do, but it more so describes what they were intended/designed to do. For example: In traditional MOBAs you have what’s known as a Jungler. This role is designed for Assassins, their main role is to disrupt the enemy teams farming capabilities by killing them, or making them back from their lane, keeping them behind in levels and currency (basically just make it hard for them to fight at their maximum capacity). Now you can do this with any character available in the game, yes, but it will likely be more difficult and less productive at an overall standpoint of view.
This game is not a traditional MOBA, I understand that, and I’m not saying that it is, or that it should be, or that it would play better if it was. I think what I’m trying to get across is that Gearbox has “labeled” and designed each character to play a specific role that they’re best at in the game, and as such each character at their most base of stats should fit that “label” or role. Currently Whisky Foxtrot falls far short of his “label” or role due to the lack of damage his skills have, due to the lack of mobility, and due to the lack of overall performance of his character.
I can definitely agree with your assessment of Whisky Foxtrot being a more combat oriented Oscar Mike, but I honestly don’t see why or what an HP increase would do for him in the role he’s been classified in.