gihur

i went for USA but tbh it's not really good. japan and GB are better

i don't suggest premium ship... E.g if you buy a tier 5 premium you will be paired will people that also have tier 5, and most likely more skilled than you

cruiser is better
battleships have slow reload meaning less damage meaning less xp gain, slower progress
unless you are very skilled at aiming i don't recommend battleships.

to me war thunder is too p2w. WoW at least sort teames with similar tier.

smh war thunder is so p2w. in WoW the only thing matters is skill, not some overpowered premium vehicle

account lvl is the milestone thing in profile. for the tier 2 ship task just go in a battle with it and screenshot

the milestone thingie is your account lvl

it depends. HE shells are good when you are engaging destroyers or cruisers, it will always penetrate the armour. it also have a higher chance of setting fires. AP shells are better at penetrating, usually used against battleships, however they have a chance of ricochet. when used against cruisers it generally over-penetrates and cause less damage. AP shells are mostly used to conduct citadel hits, aka the ship's vital parts, to deal more damage. personally i mostly use HE shells

tbh it's not too much. you are likely to just reach tier 5 ships when you get to lvl 15. i'd say just enjoy the gameplay and eventurally you'll get there