I can't remember flaylock stats but it used to be seriously OP until they finally nerfed it's blast radius. Powerful flay locks were probably one of the worst things to ever happen to this game and your numbers seem reminiscent.

In my opinion the HMG should be brought back to it's chromosome stats just, without the sharpshooter range bonus insanity. Forgegun is fine as it is, just leave it alone.

I personally don't hate the FG. I just hate the fact that it does more damage than the Plasma Cannon. I mean, for needing sooo much more skill to use, it should at least do more damage, right?

In my opinion the HMG should be brought back to it's chromosome stats just, without the sharpshooter range bonus insanity. Forgegun is fine as it is, just leave it alone.

The biggest issue is range. When I've died to a FG, I have no idea where the hell it's coming from. If anything, make the damn thing more obvious. People should be able to see and maybe hear a rail based anti-material cannon when it's charging within 100m.

When I first heard of the Plasma Cannon, I imagined it would be a short-range, high-damage, alpha strike version of the Forge Gun. I thought it would be better than the Forge Gun at close-range and for hit-and-run attacks, whereas the Forge Gun would excel at long-range and would be better for extended conflict. I only used it for a little while, but I was not amused. The projectiles were too slow and too affected by gravity.

That isnt the issue I have with it. The issue I have with it is that people in dropsuits can actually outtank a direct hit from it, while the FG, which has a much longer effective range, faster fire rate, effectively a shorter reload, also does more DPS than it does. IMO the Plasma Cannon could do upwards of 2500 direct damage and still not be OP.

again, heavy weapons in general are a touchy subject. make it too close ranged and rail tanks will be untouchable if they're in the redline. make it too accurate over range, and you get a weapon that can outsnipe snipers within 300m.
TBH though, if we make that weapon sway at least noticable, then forges will have a mechanical diminishing effectiveness beyond 300 or so meters, it would take roughly 5 forge gunners spamming shots in the general direction of a DS or hidden tank to even land a few hits, and if you're standing there that whole time, you deserve to be hit at least twice.

Tomorrow i might start work on the Plazma kannun, but the idea i had ( i saw it somewhere, but no idea) was that the plasma cannon would do burning DoT, and i was thinking of adding like 400% effectiveness to weakspots. leave the direct pretty much as is, as we need diversity, not Plasma cannons competing with railguns and FGs.

Maybe i should add a section for vehicle turrets perhaps?
the way I imagine the FG vs Rail would work is that the FG is more for 1 shot burst damage, with range to allow a safety net, whereas the railgun is just straight up superior range, DPS, spool time, and bullet travel.

I'm not saying cut the range. But just make the charge and shots more obvious for people to see where it's coming from. Lasers can be seen from across the map, mass driver rounds have a spotlight that follows them and sniper rifles usually have a trail when they're not hiding behind the redline. There's no need to add artificial difficulty to a weapon to balance it, just make it so forge gunners aren't playing god on top of some building, hiding behind inferior rendering distance.

The problem with that though would be any 2 man suicide squad could do an instakill on any HAV out there, it should be instead of a direct 'i want to kill you' av weapon, i think it should cause enough damage over time that- if the driver decides to sit through it; he will get hit again, or that a plc would deal that last hit before the tank leaves, that it would burn to death waiting for cooldowns.
A plasma cannon should be a support AV, you can use it to negate reps via DoT and allow the swarm/forge guys do full damage without worrying about reps beating them.
Maybe DoT should be 200/s, as i remember seeing that complex armor reps gave 100/s repair constant right?