Tips: Keep to the left, and start with your pistol, and stab the first guy. Remember, your teammates are invincible killing machines, and try to keep in crouch all the time, and don't kill everyone, use your flashes and keep moving, and only hipfire, and reload at cover, and NEVER stop to heal, not enough time.
So, in short...:
1. Start with pistol
2. Stab first guy
3. Shoot ONLY first guy with the pistol in the first room on the left
4. Throw a flash through the door and and crouch into cover, and from here on in, CROUCH.
5. Do not sprint, and only stop to reload.
6. Only hipfire with the MP5, never actually aim.
7. Always throw flashbangs at large enemy groupings coming through.
8. Keep your *** moving!
9. When the hull breach happens, just wait, almost all the enemies will be killed.
10. Just keep moving up the stairs, a couple of enemies will come down, blaze 'em.
11. Watch the corners, and go through, and stand up, as there is no crouch cover.
12. Near the end, sprint to the door, there will be no enemies and you can just run.
13. This is mostly luck of the flashbangs, etc. It'll take some time.
THE EXECUTION
All right, it is in slow motion, and so is the time. Only headshots work here. Now wait for the guy holding the V.I.P. hostage to bend his head down with his, and he'll lift his head alone, and carefully OWN HIS DUMB ****ING ***. And then you've beaten it.
Just adjust this to your liking. Hope these tips helped.
And I'll add the names of those who've beaten it.