How do I get past level 4 closing doors?

I will summarize what others have said on the board

<spoiler>
you can just skip at least some of the enemy and head straight for the doors.

hold down on the D-pad to run

Just skip the enemies. if you don't then you will die 90% of the time

Tried it without killing anyone (or switching weapons) and made it through on the first try!

All I did was whip the bullseye out, tag the left chimera really quick and charge in his direction while shooting, then slip behind the augur guy. It took me quite a few tries too but I got it eventually.

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oh, and the third door is down the left passageway after you pass the second door...

</spoiler>

Best regards,

Piesia