On balancing shit in pavlov. Why the fuck do attachments reduce your payout on kills? Sure they're improvements to the guns but they cost money to get in the first place. Some like 500 bucks which is a significant amount. Smoke and a flash for the price of one attachment, price of armour for a couple of them. Why charge you again afterwards for every kill? Then they go even further and make the guns that can take attachments more expensive than the plain ones (AK vs M4/shitAK or UMP45 vs Bizon) despite the plain ones being outright better guns. I don't even use attachments on my guns because of this cost they have incur. I'd rather have another grenade and a better eco next round. Attachments seemed like the kind of thing you'd put on a gun the second round you had it to keep it competitive without dishing out for a whole new gun. Granted it won't be a huge improvement but 500 bucks worth for the dot sight instead of irons compared to 2.7k for a rifle and then when you die you've still got plenty of dosh for a full buy.
Take the MP5 for example - a good gun on its own and probably the go-to eco gun for most. It takes attachments but if you get the full set it stops being a good eco gun because you've dropped over a grand on a 1.6k gun then get less dosh per kill from it. The price of a fully kitted out mp5 approaches the cost of a rifle and doesn't do as much dps (even ignoring it bouncing bullets off a helmet like raindrops). Then with attachments reducing kill rewards you've got a reward even less or maybe about the same as a rifle kill so it's not even worth it as an eco gun once you slap bells and whistles to it, completely defeating the purpose of using it in the first place. I can understand the knee jerk reaction to red dot awps but lets face it shitter cannons are shitter cannons no matter how much gloss on the turd. They shouldn't really give you much in the way of kill rewards anyway. They're for winning rounds and getting your payout from that.