fixed missions RTB logic
Fixed mission 4 ending

Mission 5 now available

mission 2:
implemented a security in case the worker fall in the water

mission 3:
fixed missing briefing images

mission 4:
removed test spawn
fixed carrier attack warning not being played
added a second wave of fighters
fixed byrne escape route
removed some long range missiles for easier approch on ennemy cruisers

fixed player numbers in mission 4

Added mission 4: November-6 !

mission 2:
changed RTB contidionnal to all aircrafts landed
mission 3:
finally fixed AV-42c not taking off
delayed music after radio message for better musical enjoyment

mission 3:
fixed take off sequence.
fixed bombers behaviour.
added a second group of bombers.
tried to fix av42 take off

mission 1:
added a second wave of drones
added ennemy number depending on players numbers

Fixed mission 3 av-42c not taking off.
Made it really harder to save all av42c

fixed title

mission 1:
improved drone chase.

mission 2:
changed planes routes.
Added a bunch of ground targets.

mission 3:
changed take off condition to conditionnal. should work better.
fixed av-42c take off sequence.