Loadout and gear
Use Breaker Cleave with Shield Bash, Bulwark, Aegis Rush, and Bastion Protocol. Four Cryo Warden pieces give 8% Integrity and 25% stronger barriers. Two Harbor Vanguard pieces add eight defense if you have suitable slots. Aegis Matrix adds a Shield Bash ricochet that can contribute a breaker on its first hop.
Conduit Vault assignments
Take Pylon A and stay close while an ally activates Pylon B, or let the party arm the capacitor. Use Aegis Rush at the laser if the path is clear. Stay outside the active plasma strip while slower teammates cross.
Shield Bash is a breaker within its 3.4 m cone. Bastion Protocol gives you a second breaker in a 4.7 m circle and raises a barrier. Save one for the three-second Core Overload, then commit your remaining damage during the vulnerability window.
Cryo Foundry assignments
Use the thermal vents and activate one coolant valve as the party opens the bridge. If you are the nearest runner to the Titan, be ready to fracture your own ice prison using the contextual interaction. Alternate Bulwark and Bastion Protocol after the shatter and finish near the party so a teammate can reach you for the next prison.