Skybolt: I have to say, I look at this weapon like a brother to the Blaster Rifle(or it used to be, until BR got the DoT). So I was trying to figure out a way that Skybolt could have "side effect" something like Blaster's DoT.
Here's the idea; The player equipped with the Skybolt could use it normally, but more experienced players are able to implement an added effect to the usual assault. The effect being a sort of a detonation which would disable the victim's core for certain amount of time much like the EMP grenades. I suggest that the core deactivation time is higher than that of the EMP grenades to make it worthwhile to use, somewhere around 5 seconds.
For example, let's say I scored 3 consecutive shots on an enemy. At that point, for a limited time only, I'm given an option to "detonate" which results in the core deactivation of the enemy. If that time limit is crossed, you'll have to score another 3 consecutive shots to get the opportunity. In other words, you can say that the enemy is "marked" in a sense that his core can be shut off for a while if you were able to get 3 shots on him and use that detonate function in time. Now, this is no real change to the Skybolt, if you noticed but adds a sort of a support side to it. I just felt that the Skybolt could have an alternate use to it much like the BR so it's something more than just a modified Rocket Launcher, and this is what I had in mind.
Also, if you guys haven't already made a weapon model for it, I'd like to suggest trying out something like a high tech crossbow. Thought it would be a nice fit for it.