[Playtest] Disabled campaign missions, enabled skirmish and random missions

[Game] Added scenarios for each faction/objective type
[Game] Added the terrorist enemy faction and related scenarios
[Game] Tweaked the scoring system for each objective type

[Skirmish] Added the objective props to the skirmish missions

[MapGeneration] Tweaked the map generation for the new scenarios
[MapGeneration] Exfiltration missions now have only one starting room

[Controls] B/N/<comma> shortcuts now also toggle pause

[Localization] Update

[UI] Added scenario thumbnails on challenge, random and campaign mission buttons
[UI] Fixed the weapon tooltip descriptions
[UI] Improved the main menu mission list layouts
[UI] Made the confirmation message buttons smaller