Hi, I have a shotgun in a mod of mine, which often, when fired downward or upward at a somewhat extreme angle, fires its particles at a random angle that can be anywhere from 10 to almost 80 degrees off of the correct trajectory.

Why does this happen?

It is hard to say without more info.
Does it fire an AEmitter that then fires the round? Anything like that?

No, it doesn't.

Here's the .ini file that contains it -- it's the shotgun at the very bottom.

"NoSupportFactor" is the spread amount when the weapon is only held with one hand. When you look directly up or directly down, usually the offhand is not holding the weapon. Sonce you have the value set to 100 degrees, that's pretty inaccurate one-handed.

Aha! Thanks a lot!

Actually, NoSupportFactor is the number that ShakeRange/SharpShakeRange is multiplied by when the support hand isn't holding the gun. This means you'll be twice as inaccurate with a NoSupportFactor of 2, and 100 times as inaccurate(!!!) with a value of 100. Which is quite a bit.

I want a CC variable dictionary to stop all of this confusion.

There is a page on the wiki that needs filling out.

Another quick question: is JointStrength the only variable that effects whether an actor will explode because he bumped into somebody like a Coalition Soldier, or whether he will not explode, like a Dummy? (I know about GibImpulseLimit -- I don't think that effects this so much)

What is JointStiffness?

I believe JointStrength is how strongly a weapon, for example, is attached to the actors arms.
So low JointStrength will mean that it can be easily knocked out an actors hands.
I could be horribly wrong here, but I'm reasonably confident.

JointStiffness determines the amount of impulse damage something will take from a collision.
For example, something with a JointStiffness of 0.5 will take half of the full impulse damage.

I think you're wrong, actually. I just increased the JointStrength values for my soldiers and now only the un-edited troops explode like cute little meat grenades when they get patted on the back.

Yep, here are definitions of both from the wiki:
JointStrength: The impulse strength of a joint to breakage. Likely is measured in Mass X Velocity of the object colliding.
JointStiffness: A multiplier for how much impulse is transferred through the joint to the parent object.
If 0.5 and an attachment recieves 100 impulse, the parent would experience 50 impulse in the same direction.

I'm sure there was a variable that did what I described, though. Ah well.