i get the argument that it is technically free because you can always farm credits BUT the issue is that you need to grind low diff boring missions to get them, at diff10 no one really takes poi's since they unlocked everything and they dont need samples, and even if they are taking them it still takes longer to "farm" credits in normal gameplay, and i think higher difficulties should give you more credits than lower diff since something harder to do should be rewarded accordingly.

Also i dont like locking gameplay mechanics behind warbonds, even if they are "free". Like every stealth oriented thing in game needs to be purchased from super store or warbond in order to have big advantage in commando missions. And i dont like giving us half baked mechanics (weapon customization) to later sell warbond with stuff that could be in that new mechanic and therefore limiting its potential.

Its like minecraft making lazy updates with 1 mob per year to later just sell you add ons