Did my research, was quicker then usual, sadly was not able to find out who is an enemy and who is an innocent, will have to go and see, thought I found out that guards in standard uniforms are not proxies and guards in suits are proxies, otherwise there would be no need for the change of clothing. if any workers attack me, they are enemies, thought I will try to simply knock them out, since they could be innocent by-standers trying to help out, they don't know what is going on, they will assume I'm the enemy.
The Plan is simple, take the Van, remove the front window, rack up the speed to 100 m/h and drive into the glass doors, they will be shooting at me, I will duck, the pole will close down, I will break it with the Van, it will slow down the Van to about 80m/h plus if they managed to actually shoot at least one tire, it will slow down to 50m/h, will be enough.
Once I ram the front door, I jump out through the space where the front window should be, while they are confused because of the crash, I neutralize them, the front desk worker will call for back up, some of them will take the elevator, some of them will take the stairs, it will take about 10 minutes for the guys on the stairs top get down, 5 minutes for the guys in the elevator. During that time span, move the couch on the bottom floor in front of the elevator, use it as cover, neutralize the people inside the elevator.
Get inside the said elevator, press the top floor, once close to the top floor, drop a smoke grenade and get out the elevator hatch. Once the elevator opens, it will release lots of smoke, put the guards on top into confusion, use that confusion to my advantage, jump down and neutralize them.
From there on, full improvisation.
Posting the plan, because I'm going to do it, in about 10 seconds, plus it might give me an ace up my sleeve.