Overview
SIG M400 is another Doll who wants to “ramp up” when not the highest DPS. Like all the previous examples of these, she takes more than 30s to have enough buffs to compete with actually strong Dolls. This is obviously way too slow for pretty much any fight, and she is also restricted by needing an extremely strong partner.
She is absolutely not recommended for use. Simply use an AR that is good from the start, not after 30-40s.