Ok, just got done with an Onyx facility, while I felt overrun at Lazarus, Onyx was challenging solo, but it wasn't like the enemies we're respawning every minute. I didn't time it well, but it felt like a 5 minute respawn timer. It was doable, and the parallax rifle is definitely my new favorite mid-range weapon.

I would recommend at least taking a nursa with you if you can carry one.

I spent last night taking on a Lazarus center.

I could barely even make it to the shuttle because the enemies would respawn every minute or two.

Every time I ended up with a Tier 3 injury, I would go into a building to treat it, and when I came back outside, everyone had respawned again.

If I had gone in with a team we would have been fine. But, solo, it was a lot. I'm thinking I'll go back with a parallax or some other electron weapon that does a bit of area damage since the enemies are all so clustered together.