Fixed Stakeout being obtainable from the Mystery Box in Kino der Toten

Issues reported by TheGoldenBum, thanks for the help!

Fixed PaP-d CZ-75 lacking iron sights
Fixed PaP-d Dual-Wield CZ-75 right weapon mag count and reverted long barrel removal (still need to deal with non-PaP Dual Wield which has the opposite problem)
Enabled 'Stop Trail When Stationary' for M72 Law/Anarchy projectiles, not sure if it will make the smoke issues any less of a problem

Issues reported by TheGoldenBum, thanks for the help!

Fixed PaP-d M14 ADS zoom level being of an optics attachment rather than the default iron sights (strange variable that, zoom focal length...)
Fixed magazine staying in place when reloading PaP-d MPL
Reduced Death Machine spin up time to 0.1s and spin down time to 0.25s (originally 0.25s, 0.5s)

Fixed MPL, AK74u wallbuy visibility on Shangri-La
Fixed missing MP5K wallbuy on Shangri-La (erroneously replaced VMP instead of Vesper)

Fixed PaP-d AUG masterkey having 30×6 reserve ammo rather than 30

Actually fixed magazine staying in place when reloading PaP-d Galil, Spectre
Fixed PaP-d M14 ironsight animation
Fixed PaP-d M16A1 adding the flatrail modelgroup when switching to the underbarrel

Actually fixed z-fighting on Kino der Toten PM63 wallbuy
Actually fixed PaP-d Python carrying over dual-wield animations
Reverted PaP-d Dragunov scope change and reverted ADS version of L115 Isolator scope as a stop-gap measure until scope overlays are implemented

Fixed animations for PaP-d AK74u, M16A1, FAL, HK21, MP40, MP5K
Fixed China Beach name
Fixed missing ironsight for PaP-d Commando
Fixed magazine staying in place when reloading PaP-d Galil, Spectre
Fixed wrong scope on PaP-d Dragunov, L115A1
Fixed PaP-d Python carrying over dual-wield animations
Fixed PaP-d Stakeout not using grip animations
Fixed z-fighting on Kino der Toten PM63 wallbuy