December 2024 patch

Apologies for the update size, it includes a lot of small changes and fixes of lots of different scenarios and units.

• Fallschirmjäger voices fix
• US off map mortar observer bug fix
• US armour crew fixes
• US sniper smoke grenade bug fix
• “Green Devils” scenario difficulty adjustments
• “Bastion” scenario performance threshold adjustments
• “Textbook” scenario save/load bug fix
• Optimisation of unit roster for future changes
• Various small scenario and bug fixes