Yes, it's 400. Here's how I plan on fielding my list to include the Herminators:
Black Widows (2000 Points)
Uses Rules From Codex Space Marine
Models: 71
Vehicles: 6
HQ:
Captain Nariko (Counts as Vulkan He’stan) (1 model)
Captain Nariko with Master Crafted Relic Blade, Heavy Flamer, Digital Weapons, and Storm Shield. (190 Points)
Elites:
Terminator Assault Squad (10 models):
10 Terminators with Thunder Hammers and Storm Shields. (400 Points)
Troops:
Tactical Squad (10 models):
7 Marines with Boltguns, 1 Marine with Flamer, 1 Marine with Multi-Melta, and 1 Sergeant with Combi-Flamer and Power Sword. (195 Points)
Drop Pod with Locator Beacon (45 Points)
Tactical Squad (10 models):
7 Marines with Boltguns, 1 Marine with Flamer, 1 Marine with Multi-Melta, and 1 Sergeant with Combi-Flamer and Power Sword. (195 Points)
Drop Pod (35 Points)
Tactical Squad (10 models):
7 Marines with Boltguns, 1 Marine with Flamer, 1 Marine with Multi-Melta, and 1 Sergeant with Combi-Flamer and Power Sword. (195 Points)
Drop Pod (35 Points)
Tactical Squad (10 models):
7 Marines with Boltguns, 1 Marine with Flamer, 1 Marine with Multi-Melta, and 1 Sergeant with Combi-Flamer and Power Sword. (195 Points)
Drop Pod (35 Points)
Tactical Squad (10 models):
7 Marines with Boltguns, 1 Marine with Meltagun, 1 Marine with Multi-Melta, and 1 Sergeant with Combi-Meltagun and Power Sword. (200 Points)
Drop Pod with Locator Beacon (45 Points)
Tactical Squad (10 models):
7 Marines with Boltguns, 1 Marine with Meltagun, 1 Marine with Multi-Melta, and 1 Sergeant with Combi-Meltagun and Power Sword. (200 Points)
Drop Pod (35 Points)