Call of Duty: Black Ops Achievements

I take no credit for this, but this is the easiest way to get this achievement (works only on solo). First, get enough money to open all doors to the power box and to get a revive. Make a crawler and open all the doors and get the revive, turn on the power. Kill the crawler on level 2 is recomended. When the speaker says "warning, breach detected on level 2" go into the elevator that leads to level three but dont go down, stay on level two. kill yourself by cooking a grenade. When you see the thief shoot him with your pistol. If you dont know when you are down in solo you get a pack-a-punched M1911 that shoots grenades (which is why you need the revive). You should just shoot all 12 rounds and he will die. I have not done this but I have seen a video and many people say it works. When I tried I was in the wrong spot (on level 1) and he took my pistols even though i was down. You can do this on co-op, but you just have to pap the 1911 and kill him before he takes it. Hope I helped!

This is quite a tricky achievement. To start, have 4 players! Then make atleast 4 crawlers. Make sure your with the power at round 4. Sounds hard but it's not. After turning on the power, have the person with the most ammount of points open the random box door (MUST HAVE atleast 2950-3950), before trying the random box, go to the claymore room if your not already there. Have everyone buy claymores, then spam the box. After you've all got a decent weapon (Keep your pistol, as if you do fail, he can take that. Go upstairs to the War room (MP5K,PM63 & Stakeout room). Now go kill the crawlers. If the lights dim down, all 4 of you sprint to the centre teleporter and place all 8 claymores down before running back up to the balcony. If you see red numbers chasing another player, fire on it constantly. If your being chased, don't look back, and keep your pistol out. The claymores should have done loads of damage. So it shouldn't take many bullets to finish him off. After killing him, you'll get a max ammo & bonfire sale. If you've got 1000 points, you can now PaP. All teleporters link to the PaP room so it's an even bigger reward.