Check the mod priority guide:
https://docs.google.com/spreadsheets/d/1ty239kyJbBs1sLhTo1JvSWuN0mIJsK1nwVdI6OLLtXo/view?rm=minimalWhile lagging behind the other AR team members in terms of raw DPS, SOPMOD nevertheless has a decent MOD (so long as she has her Event SPEQ from Roche Limit).
Her Skill 2, Hysterical Circus, turns her grenade into a cluster bomb. After the initial explosion, it splits into three smaller grenades which each deal a small amount of AoE damage (you can mostly ignore the “synergy” with M4A1 MOD’s Seal of the Avenger; see her page for more details). The extra smaller grenades don’t have the same destructive power, but free damage on top of SOPMOD’s already decent AoE damage potential is always welcome.
Outside of her grenade, SOPMOD also enjoys a nice stat boost and even a base crit rate boost. Her SPEQ is also great, being an improved EOT with far better stats. This lets SOPMOD maintain decent DPS outside of her grenade.
While SOPMOD’s Neural Upgrade had lost considerable value since its launch, her Event SPEQ makes her a competent grenadier again by giving her Crittable Grenades and a lower ICD, though she’s slightly more RNG-dependent with targeting and crits. If you’re going to upgrade SOPMOD, you may as well go all for MOD3 as all aspects of her upgrades improve her notably