try to wait for a while, don't rush, find some oppurtunity to find a lone bb5 and rush :)
(well i don't know if it will work on a dunkerque, im using strassbourg :) )

Repair cost is 0 until CA, BB repair is around 2000.
Ammo cost only a few credits except HH. Dont use normal HH if you are low on credits.
Each bind costs 500 so you lose 2000-2500 on each salvo.

If you want to earn more credits, do more damage. The more damage you make, the more credits
you get. Also if it is possible wait until the end of battle, this way you get more bonus credits.

Stop sinking

may i know when will repair start working?

i dont need to repair ship and reload ammo now

i'm only using CL brooklyn lol

Repair cost + ammo cost. If you use HH, it cost 500credits per bind.

Don't rush unless the enemy is blind...

Lol. Now i'm on lvl62 using RN_Dunkerque but i cant get the range. Rush or destroyed by DB. :(

Play better? Win? Shoot down planes with AA? Get high attack? Don't die?