Combat anomalies


General

Finding the sites

Winter Nexus combat sites spawn in systems affected by volatile ice storms in HS, LS and NS.
LS sites are assumed to be the most valuable ones, followed by NS and then HS.

Access and difficulty

HS sites disallow Marauders unless a Cryostorm Clarifier (from Yoiul LADs) has been deposited into Sansha's Transit Modulator, upgrading the site (increased difficulty & better loot)

LS sites can be upgraded with a Cryostorm Reconciler

NS sites can be upgraded with a Cryostorm Mapper

Wightstorm Forward Base

Spawns in HS storms. Can be upgraded depositing a Cryostorm Clarifier into Sansha's Transit Modulator.

Base sites (no upgrade) spawn one wave of NPCs, followed by a boss with 2m ISK bounty. For upgraded sites about 30% more rats spawn with the wave, boss has 3m ISK bounty.

Completing the event-track through non-upgraded HS sites, yields about 400m ISK of loot and 100m bounty (on top of the event-track rewards). Takes about 5 hours without competition.

Fittings

Base site

Upgraded site

Alpha fit: (normal and upgraded)

Loot

Find some loot runs on EVE Journal for these sites Wightstorm Forward Base Loot.

Muster Point

Spawns in LS storms. Can be upgraded depositing a Cryostorm Reconciler into Sansha's Transit Modulator.

Base sites spawn 3 waves of NPCs (same strength as HS ones) followed by a boss with 15m ISK bounty (much stronger than HS boss). 
Assumption is, upgraded sites spawn 3 waves similar to upgraded sites in HS with an even harder boss.

Fits

Transit site

Spawns in NS storms