The capacity requirement will need to go down. So, in exchange for more reliable procs, crits, special triggers, etc., you sacrifice potential damage to armored opponents. Armor mitigation hits low numbers harder than high ones, reaching the 1-damage threshold quicker. You still get the increased crit and proc chance, but now it's not a sure choice, even if the damage you would normally get is moved to the new serration model and was the same raw output. Make it a side-grade by distributing damage among the shots fired. Split Chamber as it is now is mandatory, because it's nothing but good. There would need to be a cap to this, probably up to the same point Serration is now. Normal builds will almost always max this, but for fresh formas and specific builds, lower damage is an option to fit mods you just need one more point for, and you don't have to have 10 copies of serration to get fine-grained tuning. Going up takes more mod capacity, but gives more damage, obviously. It shouldn't take up a unique mod slot since it is 100% of the time required to play anything past level 30, save for some very unique builds. It should have a new UI slider for how potent you want the damage to be.

Warframe rifle damage mods