Tarkov backdoor: Quest help

Hi, what do you think of complex technologies? Me, for example, I've always been fascinated by this kind of thing, even more for machines that do not require human intervention, or almost none. Anyway, I was told that somewhere in the military base there is an underground exit, which activates from another place, but I have no idea where. Anyway, it would be nice if you could go poke around a bit. The base is one hell of a shitty place as you well know, but I'm willing to compensate you generously for any information on how to get out safely. I'd like to send people there to scavenge military equipment, but I'm afraid they'll get killed if they don't find that back door.

• Trouver l’extraction nécessitant d’être alimentée dans la Base militaire
• Use this extraction

• 8200 exp
• +0.02 reputation at Le Mécano
• + 1000 Euro
  • 1,050 euros with the level 1 intelligence center
  • 1,150 euros with the level 2 intelligence center
• SV-98 7.62 x 54mm R Bolt Action Sniper Rifle