I said that there was probably 20 seconds of time save in my last run :) Made some subtle and not so subtle changes to the "route":

-When the golden gorgies spawn in, I sit in cover and smoke cigarettes so i can kill them more easily.

-Last time I waited to kill the last enemy of the first phase until after I had picked up the rocket launcher. Now I pick it up after I have dealt with the 2 hatch doors. I just throw the second grenade and slide over to the rocket launcher pickup.

-Different BIAs strat. I checkpoint reset still before the fight so I dupe the rocket launcher and always start from the same position. Then I go for the one in a "lowered stance" first, as their weak point is exposed. I do boost kick, EMP, 3 shotgun, EMP, 3-4 shotgun. Then the last BIA I usually do boost kick, 3 rocket launcher, wait until they are in low stance and do EMP followed by 3-4 shotgun.

-Then finally I don't screw up and run out of ammo during the jamming core section.