This is the second time Vulcan gets a big rework that gives it a reward for a specific downside, and then they eventually remove that downside. That's interesting. 

That's a relative buff. Quasar and SBE stay the same as they are now in firing rate but the other Shafts were nerfed. This makes SBE even more of a must pick for people who want a good garage aug. You get a big bonus in damage for not much downside anymore. 

The answers to those questions depend on the iteration of Tesla balance at any particular time. Different numbers of different parameters can change the outcome of interactions in battles. The current version works where it has a base damage and that damage is divided by the number of tanks that are in the chain. So 1 target, 900 ÷ 1 = 900.  2 targets, 900 ÷ 2 = 450 3 targets, 900 ÷ 3 = 300 etc... The current iteration also counts ball lightnings as a target in the chain.    Ally tanks are not counted as a target for the damage reduction. They allow you to increase the range (substantially at that) with no damage reduction for that section of the chain.    Only on critical hits and ball lightning explosions.    Tesla attacks the midpoint of hulls. Part of the hull can be visible around a corner but you won't be able to hit them with your chain lightning if their midpoint is not visible from the cone angle of the Tesla. Sometimes, rotating the turret slightly away from the hiding player will allow you to just barely get the midpoint in view to hit.    The current (and next) iteration of Tesla still has relatively long range extension with allies so try to utilise allies as much as you can. You can't hit someone from Tesla prong to target if they are 30m away, but if there is an ally nearby, you can quickly snap to them, shoot them and have your range extended to the enemy.    Tesla has high burst damage potential compared to other melee turrets, both in the way it deals its chain damage and the way that it can combine the ball lightning launch and chain lightning ticks.    Previously for 2 targets it would be 900 ÷ 2 = 450. Halved damage.  The new rework is (400 ÷ 2) + 400 = 600. Damage reduced by 25% (1 target would be 400 + 400 = 800)   This makes it slightly worse at the start of the engagement but over time it will be made up with a faster firing rate with the same shots to kill, which also results in more critical hits. Against grouped targets it will be dealing much more damage than before when the number of targets is high and it'll also be combining all of those higher damage with faster ticks and critical damage like usual. EMP and AP Tesla can benefit quite nicely from this for weakening and then finishing off groups of enemies.     Isida, Firebird and Freeze damage enemies in the cone. Firebird and Freeze have damage dropoff as well.  Tesla is able to hit targets at different positions on the map, you don't even have to be facing the target to hit them. Tesla can extend this range far at random with allies. 

Not bad tanki not bad,   Shaft aracde deserved nerf years ago finally you have noticed SBE nerf seem overkill but thats the fate of all crystal augment is seems, which is sad   Scorpion arcade nerf is not enough, frankly I dont understand why it got buff in a first place, 3s arcade reload seemed like sweet spot, the only augment I could understand having better arcade reload is uranium shells, everything else 3+ , scorp is OP even as a stock.  No idea why vulcan got buff, I would understand this change if you implemented old mechanic of reduced dmg by 50 % during overheat    

JGR buff is still needed, I get it before 30k HP, rocket damage doing 1800 each and railgun mode having no damage drop-off in 2024 was insanely OP especially there were barely any OP augments, players had personal isidas, but now, every turret has bunch of OP augments, isida healing is now useless, even if there's still thunder and shaft healing, just remove the ability for players to heal the JGR and revert the nerf