I'm disappointed by the current state of MGs. That being said, I'd like to throw my hat into the ring and suggest some ways to possibly fix this.
Firstly, I disagree that a MG cannot deal similar damage to a Small Laser. Yes, it might not have nearly enough heat, but a small laser puts out all of its damage up-front with its cooldown factored into the DPS. This means that the small laser can provide much more up-front firepower, while the MG would have to retain consistent accuracy to compete. Furthermore, the MG is limited by ammunition.
The critical hit mechanic is interesting, but I don't think it's viable in the current state of MWO. You need sufficient firepower to strip a mech's armor, and many mechs which are forced to carry multiple machine guns simply don't have the hard points or up-front damage to even expose those weak points. Furthermore, once a portion of an enemy mech is exposed it's almost always quicker and more effective to outright blast the weak point with conventional weaponry than to get within range and chip away at its components with machine guns. It's a specialty which is so situational, reliant on random / unfavorable odds and so dependent on dealing damage in the first place that it almost never comes into play. I definitely don't think that it should be the central purpose of the machine gun - I feel it should be a side-benefit, much like how PPCs disable ECM or heavier ballistics induce cockpit shaking.
What I would like to see is a machine gun that has greater heat, greater damage, and the range properties of a proper ballistics weapon rather than the 2x range of an energy weapon that it seems to currently have. I think the crit capability should be maintained, but I'd like to see the machine gun suffer from sustained fire - either an increase in the cone of fire the longer it's fired (such as typical machine gun fire in FPS titles), or perhaps a mini-cooldown mechanic after too much sustained fire (i.e. the machine gun "overheats" and "shuts down" like a mech). Either way, I strongly feel that it desperately needs a damage buff. The critical damage mechanic, if it can be improved, is an interesting side-benefit but not something I want to see as a core function in a weapon.
Edited by TwigTech, 09 April 2013 - 03:13 PM.