After playing H&G for more then 600 hours it is still hard to get credits (I still like the game) so I'm gona make this guide to give some tips and tricks that I and others use in-game. My English is not very good but I hope you enjoy.

Well first of all to grind credits It's inportant to know how the credit system works. Basically it just the sum of 2 values.
The first value is your salary of your character you are playing. this can be found in-game on the icon behind your experience bar.
This is my salary of my main infantryman.
You just take the time that you have played (not being in a game and not spawning) and calculate it with your salary.
The second value you will need is your in-game xp this can be found in the battle on opening the score board the "score" says your xp. You just need to multiply it by 4.4. But if you have veteran membership you need to now that there will be a bonus on the total (it's 25% more credits).
You also can find the time you have played and the xp you have gained later on in your battle report

Earing credits is not the only thing witch is inportant, also not wasting your credits on refill and repair cost. I suggest as an infantry you take a weapon you like and unselect every mod from it because mods makes the refill and repair cost very expensive. You can also play with mods but put the auto refill and auto repair off witch you can do at the heroes tab, go to you soldier you are using and got to the weapon you are using and click on the wrench at the topleft corner of the weapon.
Then a new tab will open and unselect al the squares
This is after unselecting
I also want to say to not use AT nades or any other kinds of nades because they are very expensive.
You can use normal mines instead (not anit-personel mines).

As you might have seen in the first part i talked about veteran membership you get an extra credit bonus but also more benefits this is also good trick to do but if you buy veteran membership make sure you buy the 3 mounth this is the best option.
These are the benefits of veteran membership.

Also on taking soldier you need to be smart. I do not only recommend using infantry but you can also do other kinds of soldier as paratrooper or fighter pilot. Tank and recon I don't recommend. Why paratrooper and fighter pilot you might ask, paratrooper because you almost don't need to pay vehicles also the weapons you have there are also good I recommend a fighter pilot because if you are a good fighter pilot you can make a lot of money but I only recommend if you can get a high score otherwise it doesn't really make sense. Also you need to take the soldier with the highest level, the higher the level the better because if you reach a higher level you salary gets increased.

Also you need to play the gamemode witch is suit for you i recommend to play encounter or war, but if you more like staged it's also good to do. I can't really say something about this topic.

Also it's important to know what faction is the best to take to grind more efficiently. I suggest taking the German union because there play the best people at (at my opignon) and they also have good weapons. I also suggest taking the Soviet union because they also have a good weapon for grinding: AVS. It's very good unmodded.

Thanks for reading this guide. I hope it helped you a bit with grinding credits. Make sure you like this guide and add it to your favorits. I also want to thank everyone who helped me on this guide, the members of the P.I.B. and friends of mine. If you have any more tips or tricks I can add into this guide you can put it in the commends. My in-game name for H&G: YaMoef.