Two things i have noticed that are a pain with the plasma cannon. 1 - since a patch a little while ago the plasma cannon really really does not like railings, you used to be able to charge a shot and shoot at a pretty good angle now you can try but its a gamble as to if you are about to kill yourself. 2 - the cannon holds onto its plasma like a hot fork and butter, just about everything save for small arms fire can cause your charging plasma cannon to go cold , melee, falling a foot , even walking up to a wall does it. fix's 1 - this one should be easy, whatever modifications where done to the cannon in the last patch ( or two at this point) update the target reticles to match, I'm fine with the cannon blowing me up if I goof a shot ( its half the fun) , I'm not fine with dieing to a bad shot that my cannon said was a clear shot. 2 - allow me to hold my shot no matter what happens, if i charge a shot when next to a wall and blow myself up so be it, if I'm charging and i walk off a meter high platform I should stay charging on the ground, and hey if I'm charging and get into melee i should not lose my charge when hit and as an added gamble the cannon could have a chance to explode killing all involved.
The Plasma Cannon should be nerfed in close combat. When getting suppressed by a bolter and still being able to get away with a overcharged shot is ridiculous
The plasma cannon is the go-to for Devestator right now because the heavy bolter is such garbage unless you have an organized squad. And even then its meh. Could just use the plasma cannon and kill everything, vehicles and infantry alike. The Laz Cannon doesn't even get an honourable mention because its so horrendous. Definitely ledges need fixing across the board. I can't stand how you can't shoot down over most ledges and the game auto calculating each angle for you just feels bad. There seems to be a bug currently with ledges and plasma cannon's mortar fire mode. Even though it shows that its a clear show it blows up because it somehow glitches out when you're too close to the ledge. Plasma Cannon needs some kind of defence in close range but ya, I dunno for this one. I think having the boltor/plasma pistol for back up will really help Devastators as all they have is their main gun. Would love to see more flushed out options for Devastators.