you can get on the red room by #1 putting a claymore at the last pull closest to the bomb is and going up on the double boxes on the platform where seals through grenades. jump and blow claymore half way from redroom and boxes. put the claymore facing redroom dont b a retard and put the claymore facing the wrong way. this way is way better than number 2.
#2 putting claymore in the red room alley at the end of the dumpster, facing the redroom like the other way. go in the redroom and jump on the railing go right above the claymore and jump backwards and blow it.
How to get on the awning in the seals alley way. place the claymore on the legde of the stairs right next to awning as far as u can place the claymore so it is as far as it can go.
then jump diagnally and blow it.