A1: The first guard you see, you won't be able to sneak around him. Wait until the Start Mission box shows up, and then run. He won't be able to shoot you as much. Next, with the two guards, wait behind the box until both the guards are so far away you can't see them. Go where the guy on the left is (Not the stairs!) and go that way. He won't see you. Then, jump down the ladder. You won't be able to avoid any of these guards or robots. Go to the one farthest away from you, but close to the hole. Then, jump onto the one box that has none on it. Jump on the next box, and keep doing that until you reach the ground in front of the hole. The next part after this is waaay easier.

A2: At the first guard hide behind the box until he passes it .Then go around the box and jump down.Next climb up the ladder and there will be 2 gaurds,hide behind the box until they turn around, then follow the 1 on the right.(where there are no stairs)than hide beside the box until he turns back than jump down (after the gaurd turns around down there)and push the explosive container into the gaurd ,then pass where the gaurd exploded and there will be another explosive container and push it when the gaurd comes around and push it then run over without being seen and jump over the crates and you'll atimatically go in the hole.

p.s after that is easy