I've taken a couple of massacre or takedown missions to settlements in the past and not really read the requirements as well as I should and I've ended up at high security military bases.
These have had Anaconda's and Vipers on patrol above them, lots of ground turrets, skimmers and goliaths and loads of security everywhere.
Unfortunately I've normally flown there in an unarmed poorly shielded DBX or even Sidewinder with a Scarab.
I've then unsuccessfully tried to sneak in to the Command Centre and disable the alarms, point-defence, anti-air turrets, etc but due to all the security I've haven't managed to clone the security needed to get in and do this.
I also wondered whether disabling panels would prevent the Anaconda and Vipers attacking me when I try and leave anyway?
I just wondered what methods other commanders have used at these bases? Do the ships attack if the alarms have been disabled?
First of, at those bases, you want disable alarm first, without raising it. Because once its disabled, npcs wont be able to call support, skimmers and goliaths, well as ships above, will simply
not care whats happening on ground, turrets too. You dont need focus on other panels, for turrets etc, you want disable alarms only, and that will be enough. As once alarms are off, you can clear whole base from npcs one by one, if you got any kind of silenced weapon.
Those military bases are quite big, and they have enforcers and sharpshooters who patrol on its edges, far from nearest npcs. They usualy should have level 1, and its good start to kill one of those npcs and steal its level 1 acces to get into cmd buliding wich always needs level 1 for get its door open. Rather than using E-breach or cutting panel, wich both have risk of being spoted, and both needs some time to get it done. E-breach is less obvious to spot, but it can still be noticed by npc if they close enough and look at panel.
Cmd bulding often have only one way in, get into roof and watch until nearest npcs look away from entrance and then you sneak in. If there is more than single entrance, one should be always less crowded by out-door patrols.
And once you inside, remove level 1 to be clean again, as if you not familar where npcs are on those bases, you dont wanna be scanned with stolen profile, thats why its good idea to clear it, once inside of cmd bulding.
As if you are clean, npcs who scan you, are exposed at same time, when they do thier animation for scanning. Any high dmg weapon, especially if aimed at head, will one shot those npcs, long as they dont have shield on yet. As you can draw out weapon and shot them atleast once, before they finish scan and turn shields on. Try take advantage of that, make security scan you, and when they do it, you finish them off. You can clear entire base like that, without anyone noticing. But you need atleast 1 weapon wich has silenced mods on it. If you dont have high dmg weapon that can one shot unshielded npc or any kind of silenced at all, wait unitl scan is over and let them them continue thier patrol, sneak them from behind and zap'em with power tool, thats other alternative for quiet killing.
Alarm panels are usually where prison cells are, along npc who should have level 3 or 2 access near it. Kill it quietly, get its profile, disable alarm, and procced with clearing base of all npcs. Dont worry about bodies, if alarms are disabled, once they spot any dead, npcs will turn thier shields on, and patrol on "high alert" but after 2-3 mins, they seems to foget and go back to thier normal patrol routes. Of course, all of it, if they dont hear any shots before. But if you cut power off, while are some still npcs alive, they will keep stay on high alert with shields on, so save taking power regulator as last thing when you clear those bases.