Lounge officer and their skills upgrade prioritize:
Arty,B2B Base destruction focus
Silent(3rd skill)→Red heat(4rd skill)→Madame(2nd skill)→Silent(Awaken)→Madame(Awaken)→Red heat(Awaken)
Arty,Base defense focus
Red heat(4123, awaken)→Lady liberty (4th skill)→Silent(1342,awaken)
RL
Madame(2134, awaken)→Red heat(4th skill)→Silent(3124, awaken)→Lady liberty(4132, awaken)
Tanks
Jeager(2143,awaken)→phoenix(4213,awaken)→Wanderlust(4123,awaken)→Arbitrator(3124,awaken)
Infantry
Wanderlust(1st skill max)→silent(3rd skill)→Red heat(4th skill)→Wanderlus(423,awaken)→Arbitrator(3124,awaken)→Phoenix(421)
Fighter
Cloud(3142, Awaken)
Bomber
Mischief(3124,if only bomber丨2314 if have fighter, Awaken)→Cloud(3rd skill)
Naval
Steel(1324, Awaken)
