There are some guns that fire an AEmitter that emits the actual round.
There are many guns that I've seen that work this way, so, how do they actually work?

You shoot an AEmitter which shoots your round right after the AEmitter if fired.
Therefor bypassing any massive recoil.

I know how that part works, I mean, how does the coding part go?

I've tried many times, but they all end in fail, for example, once it could only shoot to the right, other time it shot in random directions, once it randomly emitted the round and any of the options before would happen next.

AEmitters usually emit in relative of the direction they're headed. So if you make it shoot the AEmitter with at least a FireVelocity of 1 then it should emit in the direction you shot, other wise they will always emit to the right if they don't have a velocity.

Hm...
I'm going to try that, thanks.

Nevermind that last post, I'm dumb.

AEmitters emit in the direction they are ROTATED. Not in the direction of their velocity.

What the...
The direction they are rotated? But...
I'll just go out and experiment, trial and error is one of the best ways to learn.

Make sure OrientToVel = 1 and also that they have low spreads.

Or you could use the gibs of a TDExplosive, which lets you make the bullets inherit velocity.

But... but... I want to do it with emitters! =P

I mean, I know AEmitters are very versatile in ini coding, and that it is a very important part.
But, I have never found a guide for AEmitters (except templates) or learnt more of how they are used.

That's why I want to learn more about them.

Using emitters lets you have varying initial speed projectiles while explosives let you have the velocity automatically inherit. It depends on what you want to do.

AEmitters can work almost the exact same, just without the weapon status.

You could also just look at the code for the Revolver Cannon. That's what I've been doing for my massive-recoil weapons. Or just copy/paste, if you're lazy.

I did it once, but it failed horribly. I still can't get what is the thing that makes them work.

If it's just one projectile you're firing, it's more efficient just to set the mass in Lua on Create(), and is much simpler to implement without problems.