The points system wouldn't be horrible if the weapons weren't so insanely imbalanced and "standard" attachments only ever cost 5 points.
The USG90 is a great example. For pretty much any other SMG, getting CLOSE to the 50 rounds of the USG costs 30-40 points. On the USG, 5 points because it's "Stock". So you can rock whatever other great attachments you want AND get 50 rounds in a mag.
Then you have how some guns have impossible recoil, made even worse in S3, requiring you to build them with recoil control attachments, and then you have same damage weapons with no recoil stock, and you get way more freedom to chose.
ALSO doesn't help they weren't smart enough to set up attachments in increments of 5 points. Not everything needs to be in the 5 points, but the grips and ammo attachments are horrible for this. You either get to use the great or the terrible attachment, and rarely do you get an in between choice.
Also the thermal costs are stupid. 35p for a optic that has limited use cases is moronic.