What is an easier way to gat to Ames on meatl gear solid 2 sons of liberty

There is only one way to get him: go to strut F and take the AK-47U in a room on the ground floor then go to shell 1 (carefull of the claymores on the connecting bridge) Put on the B.D.U uniform and équip your AK, then take the elevator to B1. Put yourself in the south-east corner of the room, then take your microphone thingy and call Ames (you shouldn't be too far of the spot your at) as soon as you hear the beeping noise.