Thanks for the info CandleJack. So a realistic version of the M2HB would have a fire rate of about 0.086 (700 rounds per minute), dealing 270 damage a shot and doing 3139 damage a second (unperked). That is waaay more damage than anything else. If it had a clip of 50 rounds, it would burn through it in just 4.3 seconds and deal 13,500 damage, enough to kill a two-player patriarch on suicidal difficulty. So the damage is going to be very tough to balance, and it probably shouldn't receive any perk damage bonuses.
Weight-wise it is going to be a problem having such a gun in the game too. The empty weight of the M2 according to gunwiki is 38kgs alone and 58kgs empty with a tripod - more than double what a level 6 support can carry. Supposedly the lightweight version of the gun still weighs 27kgs and with the tripod that would be 47kgs. So there would have to be an exception to the weight rule for this gun or something, and your movement speed would have to be very slow. You would be forced to set up relatively close to the shopkeeper you bought it from. It would be very hard to fill up the gun again if you had to carry the gun on you to fill it up like everything else- so the use of the weapon would be limited to a wave or two.
A 50 cal deployable machine gun this could be a weapon used for the last wave and the patriarch. But keeping it's weight and damage realistic is going to be a problem, especially for small groups with high level players.
Keeping in mind that the Scrake has the highest health with the most players, and that FPs get 50% damage resistance, we could tone the damage a bit, as TWI nerfed both the Xbow and M14/SCAR. still higher than the 7.62 NATO battle rifles, but lesser than the Xbow.
These are the 2 parameters required.
Keeping in mind, the LAW's RL cousins don't weigh that much, weight can be fiddled with a bit to fit it into Support's weight capacity. I'd say make it weigh as much as it would take for a L0-1 Support to carry. Or make it increase in weight to always take up all of a Support's maximum capacity.
I support the lack of discounts now

Making it a weapon that everyone needs to pool money for is a good idea, so only one,
maybe two, make it into the game.
And yeah, extra slow walking speed is a yes from me
You could use this unknown tactic to put the M2HB (or
The Fifty, shall we say?) at the optimum point for playing. I'm sure this tactic hasn't been heard of, it's called
teamwork.
I've read that the M2HB has a 450-575rpm so i guess i was wrong, though the AK47 has a 600rpm RoF, so i wasn't
that wrong.
