XP requirements It's different per level here's a link to look more into it: https://wiki.warthunder.com/index.php?title=Category:Achievements#Player_ranks

Average time takes to complete a quest? It could take up to 72 hours but normally doesn't take more than 24

Cant download in time You can still complete the second quest though!

How much exp do i need to reach lvl 9 in game? 170,100 in total. From lvl 8 to lvl 9 it's 57,000. more info do ur own maths: https://wiki.warthunder.com/index.php?title=Category:Achievements#Player_ranks

How much exp do I need to get from level 9 to level 12 https://wiki.warthunder.com/index.php?title=Category:Achievements#Player_ranks About 236,000 xp, no one said it would be easy, but possible at least. It's still $50 with 1 quest. Good Luck!

Questions about Quest 6. i'd say like a week or less i dont really know

Questions about Quest 6. im done https://wiki.warthunder.com/index.php?title=Category:Achievements#Player_ranks

Questions about Quest 6. I added the xp thing because it could take you less than 10 hours or more than a week to complete it depending of how much you play and how good you are, sorry for not clarifying that.

Questions about Quest 6. Killing a lot is my only way i can give you to level up fast or you could go with a bomber plane and destroy AAA's but I haven't tried that yet so I cant confirm it's good, and yes 31 days is more than enough time to complete the quest. Just for reference you need 170,000xp in total to get level 9, you can see your xp below your level just pointing your mouse at the "/" thingy. I could not find how much xp I needed to get level 9 and I completed the quest blindly without knowing how much xp I need, and now that i need to get level 12 I'm completing it blindly too. If someone knows or find a website about it pls send it, it would be very appreciated.