My long advice would be:
1. If you play a lot, you would earn many gold consumables in missions (eg large repair kit, auto fire extinguisher) sell them and leave a few for tourneys and events. (!!!!!! Sell them on regular price and not when they are on discount, else you would sell them half the price you should have get)
2. sell emblem rewards (eg country flags) you may have accumulated many of them, go to "exterior" of your tanks and sell them when they are not on discount sale.
3. go to your depot and sell modules you are not using anymore (you already did it though)
4. check out your unused shells in depot and sell them too
5. If you have accumulated such credits, be more patient in buying, wait for discount sale on equipment on crew retraining and skills resetting, and on tanks. Buy bulks of consumables (eg fire ext, med kit, small repair kit) when on 50% discount sale. I buy them by hundreds, I am assuming you are using them in battles. In the long run you are able to save 50% of all your used consumables in all your battles.
6. Don't waste shells on pubs, you pay for them as you resupply, many players on low tiers fire shells on the air during the start of the battle, you just make your hit rate stats worse and you bleed out some little credits. Try to be accurate on games, make your hit counts, raise your hit ratio stat, making you an effective damage dealer. HE shells are more cheaper, carry a good amount and use them on resetting cap points, on killing arty, killing light tanks, tracking enemy tanks, blind firing on bushes and spots. If you are facing heavies higher tier and you are just bouncing your AP shells, use some HE and try to damage some modules and injure their crews. Make sure you are adapt on clicking 1, 3 on your keyboard, and use that 2 on desperate moments only.
7. Play "Campaign" missions and try to achieve both conditions and you will learn a lot of credits. I think tanks of Tier 4 above are required. So always keep a Tier 4 or 5 for farming. If you are in the German line, luchs and leopard even with low crew skill (no sixth sense) will be good to use, just keep on moving and find tanks low on HP that you could kill.
8. If you completed a mission in the Campaign, you can do it again (click improve result) and complete them with honors, you would earn extra credits for it (eg 35,000-50,000)
9. Try to survive at the end of the battle and avoid full repairs, you will earn more credits by doing so, but remember to always help your team get that win, either by spotting, tracking, damage assist, and go for the kill if you can. Don't hide or camp ( camping depends on battle situation so always know when to flex), always look at the map and find a spot where you could help your team win flanks.
10. Winning means credits. Try to manage crew skills, and crew resetting on how it will work to your advantage. ideal crew skill of 3 are sixth sense (commander) repair or camo (depending on tank) for crew, 2nd: Bia (brothers in arms), 3rd repair or camo (depends on your tank) at least that is what I believe for Clan war/ Strong Hold set-up Tanks. But if you are want a Random battle set-up type, that will really depend on your play style, just make sure you have sixth sense and Bia on all crew, the rest will be up to you and make the most of your tank. Love your tank and it will give you credits.
11. Focus on the game, TT will always come, but make sure to think 'I need those credits' adjust and always know your role in the battle by reading your team tank line up vs. enemy tank line up. Fighting with teammates will just ruin your game.
12. Sell tanks that you are not good at, keep the tanks that gets you lot of wins or high win rate. Sometimes there is a tank that does not do good for you especially in MM (Matchmaking) you are good at it but you get in losing team frequently, so your win rate for that tank is below 50 (you kill 6 tanks but still you lose), and that is not a good sign, and even how much you love that tank and you know that is a good tank, it just rage you out that MM hates it. Try to find a farm tank for you that give you wins and credits, If you have lot of credits already then you can play the tank you enjoy and want, though it puts you in losing teams.
13. Participate in game events where WG gives premium tanks, they just given the T-34S recently in the battle of Kursk, there are 3 equipment to be earned in the first 20 battle missions on a daily basis and you can sell them if you badly need credits. Premium tanks are needed for fast accumulation of credits, so if you are wiling to buy them in real money, I advise you to buy them on sale, i just bought the Pz T 25 on a 50 percent coupon discount for 199. That would be your choice, I am not endorsing you shelving money on a free to play game. Never sell Premium tanks, they get rare in time and some of them, you cant buy in premium shop anymore, besides you can easily farm the credits of their worth if you have them on your garage, or they are good for collections, but its up to you anyway on how you badly need those credits.
14. Participate in online tourneys, there you can find 1v1 matchups, or hook up with your buddies and participate in 3v3, or 5v5 challenges, look them up in Wot site tournament page. So I advice you to keep a tier 5 and 6, and 8 if you can go there that are tournament worthy. These tourneys gives you gold, as many participants don't show up, you get to advance easy, and if you win over other teams, you will get at least 100-300 gold for reaching quarterfinals. Use gold to buy in game premium days to make a credit grind (although the most 'best buy' prem days would be the 1 month value, wait for them to go sale but that's rare)
15. Try to keep up on your personal missions, esp the 'on track to tier 10 event', gives you lot of boosters you can activate to help you on your credit grind.
16. You can switch equipment like Binoculars, Tool box, and Camouflage net from another tank, so instead of buying another, you can save credits by switching it manually or some mods swap them automatically.
17. Although camouflage paint can be sold in your tank exterior, I do not recommend it, but if you have extras, and you badly need silvers, sell them instead of selling premium tanks.
18. There are events and missions that gives free premium days, if you are on a premium, don't let it go to waste, try hard to solo grind it as platoon takes you longer to battle waiting for mates to finish the game. Always log in on a daily basis and check out wot site pages, even if you wont play for that day, you might get some surprise gifts or bonus codes to your liking.
19. I can't hardly think of anymore advice for readers to be able to gain or save some little credits on their tanking life. If you have tier 4-6 tank on the grind, hook me up on a platoon and I'll help you out on your grind if ever I'm online and that I can.
I'm not a hundred percent sure, but these are my insights, if I gave a wrong idea, please correct and so I may learn from it. I'm not an expert in this game and still trying to improve my game-plays. Hope I could be of a little help to my fellow tankers.
Edited by x_GaRRuK_x, 17 August 2018 - 06:41 PM.