As someone who consistently plays 2-3 times a week on your server, I would like to point out that the game's farming system is quite flawed, and players often ask admins for money to purchase lasers, grenades, and anti-dotes.
1500 per reg is too little, today I came to play with a balance of 1300 - if you consistently buy 2 lasers per round and infinite ammo (without them, it's almost impossible to play, because even if you have lasers, you'll get a crab and lose, turning the game into pay to win), my money runs out after 4 maps with 8 rounds each, and the admins refuse to give me any more money because my nickname is too long and confusing. Solve the problem, raise money for infection, for killing zombies, and so on for regular players (this is important because most people, once they get involved, don't have the means and start begging, which destroys their motivation to farm the money themselves)

First of all you had a model to follow.
Getting credits is quite balanced, the problem is your game style and the way you spend the credits because if you buy inf ammo and no recoil every round without buying HEV suit of course you lose credits very easily, being infected by a hit or a crab. This is a team game, if you go at least 2 into a hideout you don t have to buy 2 lasers, each can buy one.

anyway, 1 laser is not enough, they are removed with 1 grenade and you die, even if I take 2 lasers and make 5 kills + I will survive the endless rounds I won't get the money I spent - this logic unfortunately kills the monetary potential,in the ideal case for server you just need to be able to survive and make from 3 to 7 kills so that investments in lasers and ammo would pay off. Right now you only spend and you don't earn

• If there are more of you in a hideout you can use 1 laser / player, this will help you save some credits.
  
• And to make credits easier you must avoid laser kills, that is, block the entrance so you can kill with the weapon
  

Hey, currently I think it's fine as it is. I'm a full f2p player, and I do like the difficulty. I managed to reach lvl 33. Most of the major maps that we always ended up playing has a human-oriented advantages where emp's couldnt reach the lasers you've put. You don't even need to buy anything other than HEV and laser. The 1500 provides alot of usage on that, already. Just get p90 and HEV. Each time, you see a Prison map, you should always vote for it. And you shouldnt bother buying anything until you've reached lvl 8-10. Generally, in a hideout, the most annoying to have are newbies who refuses to buy armor but only infinite ammo and recoil.

And it only took me 3 days of playing with the average of 2 hours a day of playtime to reach lvl 10.