The run went well and i got lucky with some enemy spawns not leaving elevators but lost 20 seconds to the button at the end not finishing the mission. I probably lost some time using the pyro multi tool for the repairs and to not having the stamina pens and poor medgun uses. The full size salvage tool appears to repair much faster. I referenced heimdelight for which frame to stop the timer and started the timer the moment the elevator door texture changed which was 4 frames sooner.