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OBO: Shotgun, SPAS Rebalance script

OBO, pronounced "oboe" (yes, like the instrument), it stands for "Overall Balance Overhaul."

This is a script that rebalances the Combat Shotgun / SPAS-12. In vanilla, the two semi-auto shotguns were almost clones of each other, which just screams for me to give them each a niche. Also, inside the gun shop on the first L4D2 campaign, the SPAS's sign says "One tight spread!", so what more inspiration could a balance-nut like myself need?

So put simply, the SPAS will now have a noticeably (but not ridiculously) tighter spread than the Autoshotgun, which is both an advantage and a drawback, since a wider spread makes hitting many Commons at close range easier. It also has a slightly higher damage per shot now. To compensate for the tight spread and resulting increase in DPS at range, I've reduced its capacity from 10 to 9, to help prevent over-killage of Bosses and Specials, while giving it a unique feel as opposed to its sister weapon. In addition, the weapon will only fire 8 pellets per shot, but those pellets will be able to three-shot Commons on Expert. This means the Autoshotgun is a better choice for crowd control, particularly in chaotic, short-range, all-around rushes while the SPAS is better-suited to killing Specials or lined up, slightly more distant Commons.

The result is a weapon that functions like the Autoshotgun, but with its own identity. There are also many smaller changes, all listed below.

Changelog (X means unchanged):

VerticalPunch - 3 to 4
SpreadPerShot - 22 to 6
MaxSpread - 5 to X
SpreadDecay - 6 to 15
MinDuckingSpread - 0 to X
MinStandingSpread - 0.75 to 0
MinInAirSpread - 2.5 to 0
MaxMovementSpread - 1.5 to 0.3
PelletScatterPitch - 3.0 to 1.5
PelletScatterYaw - 8.0 to 4.0
ReloadDuration - 0.396 to X (Per shell. Changing this does nothing, not sure why)
DeployDuration - N/A to 0.6 (added this line)
PenetrationNumLayers - 2 to X
PenetrationPower - 30 to 74
PenetrationMaxDistance - 500 to X
Damage - 28 to 34
Bullets - 9 to 8
CycleTime - 0.15 to X (Changing this does nothing, not sure why)
clip_size - 10 to 9
primary_ammo - AMMO_TYPE_AUTOSHOTGUN to X

Disclaimer about the preview screenshot(s):
I got them randomly off the internet. I claim nothing. If need be, I'll replace them with something generic from Wikipedia or something.