The Assault Collection: seven skins, four rarities
The Assault Collection goes back to August 2013, the early CS:GO period, and belongs to the map collections. With only seven skins it is a compact set, and the catalog lists no case or Souvenir Package for it, so the skins are traded between players rather than unboxed.
The ladder tops out at Restricted with Glock-18 | Fade and MP9 | Bulldozer. The Glock-18 is limited to a 0.00–0.08 float, so it exists only as Factory New or Minimal Wear, while the MP9 starts at 0.06 and runs to 0.80.
The two Mil-Spec skins, AUG | Hot Rod and Negev | Anodized Navy, share the same 0.08 cap as the Glock-18. Five-SeveN | Candy Apple is the only Industrial Grade entry and ends at 0.30, which gives it three wear levels. SG 553 | Tornado and UMP-45 | Caramel make up the Consumer Grade tier; both begin at 0.06.
That means three of the seven skins can never be worse than Minimal Wear: heavily worn copies of Glock-18 | Fade, AUG | Hot Rod and Negev | Anodized Navy simply do not exist.
The set is simple to reason about in trade-up contracts. Ten Consumer Grade skins from Assault can only return Five-SeveN | Candy Apple, and ten Mil-Spec ones return one of the two Restricted skins, Glock-18 | Fade or MP9 | Bulldozer.
Weapon types are spread evenly: two pistols, two SMGs, two rifles and one heavy weapon, the Negev. None of the seven skins has a StatTrak™ version.
For reference, the lowest current marketplace offer for Glock-18 | Fade is $1 345.00 (Factory New), and the list below shows the other six skins with live prices.