Make pulsar lines (mostly Polaris of course) one shot and then reload. But also make it so that charge attack (from a shield charge) can be immediately followed by normal attack, without reloading.
If charging from shield doesn't work in lockdown, it should be like this: shot->charging animation->reload on release before charged; or full charged attack
This will make polaris gunning more dangerous, but will not disrupt it's main purpose in PvE, which is shutting down gun puppies. It will promote smarter and hopefully, more interesting gunplay. The reason I suggest this is because in PvP it is impossible to pass through the small chokepoints with polaris spam by using anything but striker, effectively reducing the power of other classes. Now, if it was implemented, recons should still not able to sneak in to players holding the 1st and 3rd point on many maps like furnace, but they will be unable to spam-lock both the exits at the same time and it will be a lot easier for strikers to zoom up close. And if the player misses there is an actual opening for normal walking speed classes.
I heard that polaris outdamages some swordsin clockworks, if it's true than it should fix the problem and eliminate the "one best weapon" mentality.
P.S. It's a bad habit to write something when it is 1 am.
Edit:
I just wanted to introduce some new mechanics, but seing as more than half forum-goers disagree and that developers kind of played with this idea and discontinued it in punch gun, I'm all for making Polaris a 2-shot gun with slightly longer reload time. If this change is to take place, it should allow the same damage per second by buffing it's damage per shot a little (and lower it's dps, just kidding. or not?). And save it's ability to flinch gun puppies.
Also, I am for separating pulsar upgrade branches and preserving Supernova as it is now. (and you know, upping it's damage because it's just normal-damage)
"It will promote smarter and hopefully, more interesting gunplay."
You had me there.
Although, I don't think most people will Agree...Mostly T3 Lockdowners...
EDIT: Forgot to mention that the Radius should be enlarged, though. Just a tad bit.