Zerk could use some buffs. The only thing it has going for it is being unable to be grabbed by clots and swing speed. Other than that medic is just as good at melee as berserker.
I agree that the Berserker should receive a little something to help make the class stand out more, but comments like "Medics are just as good at melee as they are" strike me as redundant. Arguably better at
tanking, yes, but Berserker gets various benefits - undertuned or not is a different matter - for swinging their weapons as it is that other perks don't possess, and do you really want a
Medic to selfishly put himself into the fray (with all the risks that entails) instead of doing his job being the team's lifeline? I want no part of that on the higher difficulties.
Do any classes need balancing atm? I feel like Commandos don't bring anything to the table like the other classes do. Maybe that's just me though.
Ignoring vision of Stalkers and increased Zed Time duration (both huge boons), Commandos are good for space control. I've been playing with a high-level one in HoE games and they're seemingly well-suited to clear out lesser Zeds from afar before they can cause interference for the rest of the team, as well as higher priority targets like Husks if the opportunity exists. They're prone to being swarmed though if said area control is falling apart and their slower movement speed compared to Medic and Berserker is also a weakness Commando needs to be mindful of, but that's a fair balance choice for a utility class.
Do melee combos do more damage than just clicking LMB quickly?
Keeping the button pressed instead of quickly repeating it seems to be slightly faster, yes. The Katana also has a quick strike upon whipping it out if you hold the LMB press as you swap from another weapon to it.