Ugh, Reticulan bases are a slog.
The first one I abandoned due to only having pistols and captured harpoon guns.
The second, I went in with all the hardware I had … 46 turns over 2.5 hours irl to clean up all the enemies. 27 kills and 6 captures. All 6 gals injured, 2 of them under 10% hp and fainting every other turn. Not looking forward to the next one.
Is there a weapon type limit? Because I've taken sectogres and sirens out easily with self-charging lasers, lassos, and stun batons. Technicians go down to a black powder bomb or so. For that many, use a whip or lasso to make sure enemies stay stunned. One extra HIT! works well enough. You don't want to kill them with overstun too often. The game is based around hostage taking, after all.
Mechoids are an issue, though. I don't even know what you'd use on them, unless you have plasma. Maybe the bio shells in the Magnum to lower armor? 60 armor and amazing resistances, and they accompany soft targets.
What you do is have everyone do everything you can to the Mechtoid, even cattle-prod the bastards, then when they are down, steal their plasma gun and vapourize the rest of the crew. I finished the battle with two Mechtoid captures, so that research is gonna be
very interesting … Willie Pete was the MVP weapon, however, took only one to take out the elite with the blue glow. My sniper Gal used all the available squad-sight and nailed sirens and sectogres from one side of the map to the other.
Toughest to kill was definitely the Mechtoid, then the elite. But you can really fuck yourself up if you take the wrong turn and go around the base the wrong way. go around the long way, wade through wave one of about ten various reticulans, collect and use their weapons, (Military shotguns, light sniper rifles, DB shotties, and usually a siren with a laser rifle), then you are set for the invading masses. I would surge forward after knocking down four or six reticulans, only for the bases doors to open and let out the next six to push me right back and heal up - never actually made it to the doors to get in the base.
Fake Edit: Also have to give props to the Harquebus - a flint-lock with a bayonet captured from sky ninjas - awesome weapon in the hands of someone with high firing and high melee.