Phoenix Logs/UNSC Units/Kinsano's Cyclops
From Halopedia, the Halo wiki
Kinsano's adapted Cyclops mech-suit.
The Flame Cyclops is a Hero unit unique to Kinsano. Her one-off armored exoskeleton is equipped with twin flamer units whose limited range is offset by the high damage they inflict, and by the mech's overall speed, giving impressive area-control.
A fast-recharging energy shield provides basic defense and an upgrade gives access to the Firewall ability, which creates a static wall of flame very damaging to units passing through it.