[X] Write in: Wait it out till the guards thin their defenses then if the kill teams or the main character has one, EMP the turrets to delay the suppressive fire then take the guards in the windows out then rush in and finishing up the rest while they are surprised, when the gunfire attracts more attention set up ambushes to complete the takeover
[X] Write in: Ask the kill team of their opinion, mention the turret on the garage and ask if any of the cars would be good to ram into the guard house. Ask STEVE and the kill team if they can take care of the turrets by hacking them. Loot the fallen guards for entry cards or something similar, may get around the turrets. Storm them the risk is acceptable, focusing on the guards without covers first but otherwise wait it out.