Direct and effective, despite no MASC. 81km/h is enough for its role. Two UAC10's with native quirk for mid-range with 4.5ton ammo6, and 5xERSL for short-range. Focus on UAC/ammo quirks, cooldown and heat gen, then mobility.
You put ERML in the title. Since they changed the quirk I started running this, except only 3xERSL with max armor.