
The most common causes of this issue are: While you are here, make sure you check out our MW2 guides at Gamer Tweak.Your IP address has been temporarily blocked due to a large number of HTTP requests. That’s all there is on how to reach the Penthouse without Killing or Alerting Anyone in MW2. You will earn the Ghost-In-Training achievement here.
Lastly, open the emergency lock and then enter the third floor to continue with the rest of the mission. When you get inside the elevator, use the controls and first bring it down and then hit the brakes when the entrance to the third floor is clear. Once you do that, head to the Elevator Shaft. Next, make your way towards the ladder behind the Penthouse and then meet Alejandro on the roof. While you are at it, be ready to hide behind the counter once you distract him. Throw one of the glass bottles to his right and make him look that way. Since you have to reach the penthouse without killing or alerting anyone in MW2, you will have to be patient. While two guards are easy to distract, third one wearing the tank top won’t move. Now that you are on the roof, you will spot three guards. There will be a ladder near you that you can use while climbing up to the next floor. As he leaves, go into the balcony and jump onto the ledge. Throw a glass bottle slightly close to him in order to distract him. Now you will be able to spot the guard in the balcony. Use this time to sneak up before the other guard arrives. Once you get close to the staircase, the guard will move away. Next, scout out the building to find an entrance to the stairs blocked by a guard.
These will be handy while distracting the guards.
Once you are done with Alejandro, head over to the bar in front of you and then pick up the glass bottles.