Retake loadouts now randomize M4A1-S and M4A4

MISC

• Improved player movement prediction when colliding with other moving players.
• Added scope in/out sound prediction to play immediately for local player.
• Retake loadout cards will now randomly offer M4A1-S or M4A4 if player has both equipped in their CT loadout.
• Added Body Armor to 4v3, 4 Bad Guys Left, and Blind Fire cards.
• Added Dual Berettas to T Blind Fire card.
• Replaced Flashbang with HE Grenade on CT Enemy Loadout Card
• Fixed idle animations on CZ75-Auto, SSG 08, AUG, Galil AR.
• Performance improvements.
• Stability improvements.
• Improvements to animation fidelity during demo playback.