How to get the Impossible, It Can’t Be. Is it? achievement

Helpful Preparations

• ECM with pager delay and door opening (The more pager delay you have, the better)
• As low detection risk as possible
• Dominator & Smooth talker (useful if caught before grabbing the server a lot to save the situation)
• Cameras
• A lot of patience

The achievement requires no alarms and no computer. You are allowed to be detected as long as no alarm goes off before in the debriefing screen.

Completion

Part 1: Security Boxes

You're looking for small white boxes on the walls. You'll want to avoid guards and breaking cameras at all costs as there is no way you can take out all of the guards on the level. There are at least 7 guards every time and they seem to be replaced with new ones as you kill them off.

First off, you'll want to check the cameras to see if you can find any of the security boxes. If possible, have a friend sit on the cameras checking for guards that are coming your way at any given time. Check the outside walls and the lobby first, because they are the easiest possible locations for the boxes.

Once you have located a box, you can open it, cut the wire and close it. The guards will notice an open box and call an alarm.

NOTE: You must be standing in order to cut the wire.

This part of the mission is random. There are three security boxes and you need to cut two wires. One of the three boxes triggers the alarm. If an alarm goes off, restart the mission and try again. It can take quite a few attempts to get the correct boxes.

Part 2: Server room

Once you have the wires cut, the alarm for the server room door is disabled. Find the server room. The safest way to find it is to check the cameras for the door. There are four locations where it can be:

• Next to the back door
• Above the lobby, a bit on the right
• At the back wall next to the room full of computers
• At the back wall next to the glass room (meeting room)

Only one should go in and he should have his ECM upgraded to open doors. Sneak to the server room door without being seen and pick the lock when there are no guards nearby. Open the second door with the ECM and grab the server. Guards will notice the second door open and will come check it out. Sneak out as fast as possible and finish the mission.

If you get caught while carrying the server and you have a player with pager-delaying ECMs, have him chain his ECMs one after another as you run out killing all the guards you see on your way. The alarm will not go off until the ECMs run out, but the ECM MUST HAVE PAGER DELAY. If your ECM is not upgraded with that, answer the pager of the guard that caught you and then run and hope for the best.

Enemies will duck and either hit the ground or try to move out of the way while being suppressed, during which time they won't do much firing back at you or your team. Certain enemies are more susceptible to being suppressed - pretty much anything "non special" below the FBI guys in full armour - these guys and specials will generally keep charging at you although I have seen tasers act momentarily suppressed. This is especially useful when you're trying to move bags in line of sight of enemies.

Just firing in the general direction of enemies will trigger the chance to suppress. How effectively you suppress is based upon:

• Your "chance to suppress" (Enforcer tree)
• The noise your gun makes (Higher "threat" is better, silenced is bad)

Silenced weapons seem to act like a negative modifier to suppression, since the enemies don't "hear" the gunshots and therefore don't try and hide. Sticking one of the noise amplifier/threat increasing modifications (sharks teeth, fire breather, etc) to your weapon and increasing the noise it makes will improve your suppression.

This is further detailed on the inventory screen when looking at weapons:

The amount that your skills increase the effectiveness of a particular statistic is indicated in the "Skill" column.