Beachhead Map and Atlas Passives

Dear all,

Do Atlas passives affect Beachhead maps?
- more shards (small Nodes)
- more Harbinger (small Nodes)
- "Unspeakable Offensive" Node?
- "First Wave" Node?

Or will this affect only rare maps but not unique Beachhead maps?

Which options do I have to juice up Beachhead maps?
- Vaal Fragments?
- Scarabs? (pretty sure they wont work with unique maps)
- Kirac Mods? (Also pretty sure they wont work with unique maps)
- Sextants?

Many thanks

no, they dont.

the drop from harbingers has been stealth nerfed with this patch, beachhead maps are now trash.
pretty sure the only thing that works are the vaal fragments to increase quantity and maybe the atlas passive that increases the area level by 2 for unique maps (didn't check) if you are doing them for exp (i would do coward's trial rotas instead or 5w/chayulas depending on how much you want to spend).