source: reddit post shared by u/SmallAl
Aside from the daily missions that can get you gold as covered in this thread, World of Warplane’s 10 year anniversary is currently active: https://worldofwarplanes.com/news/happy-birthday-wowp-2023/
The event has 3 easy missions, which I completed in 4 hours – it got me:
Free experience: 22500
Wargaming Premium Days: 48
Premium planes: 4
Trained Crew: 2
The gold and free experience is usable in World of Tanks. The Wargaming Premium Days are different from the WOT premium days, but are still useful in World of Tanks – while you lose on the weekly credit reserve and the 3x daily multiplier as well as the bonds mission, you still get the 50% XP and credit multiplier.
Overall, very nice rewards for 4 hours of gameplay! The missions are still available for 4 more days as of this post I believe.