Operation Breakout Weapon Case: Skins, Knives & Odds
Everything inside the Operation Breakout Weapon Case: all 14 weapon skins, every knife in its rare pool, the odds, and how the case fits into the CS2 knife trade up.
The Operation Breakout Weapon Case was released in 2014 and contains 14 weapon skins plus a rare pool of 13 knives.
Below: every skin by rarity, every knife in the rare pool, the odds, and what the case means for trade ups.
All Operation Breakout Weapon Case skins
These are the weapon skins that can drop from the Operation Breakout Weapon Case, from rarest to most common. Each can also drop as StatTrak.
Covert (2)
P90 | AsiimovCovert
M4A1-S | CyrexCovertClassified (3)
Desert Eagle | ConspiracyClassified
Five-SeveN | Fowl PlayClassified
Glock-18 | Water ElementalClassifiedRestricted (4)
PP-Bizon | OsirisRestricted
CZ75-Auto | TigrisRestricted
Nova | KoiRestricted
P250 | SupernovaRestrictedMil-Spec (5)
MP7 | Urban HazardMil-Spec
Negev | Desert-StrikeMil-Spec
P2000 | IvoryMil-Spec
SSG 08 | AbyssMil-Spec
UMP-45 | LabyrinthMil-SpecThe Covert skins in this case are the inputs for its knife trade up: P90 | Asiimov, M4A1-S | Cyrex.
What knives are in the Operation Breakout Weapon Case?
The Operation Breakout Weapon Case's rare special pool contains this knife in original finishes:
Each knife comes in the original finishes: Vanilla, Fade, Case Hardened, Crimson Web, Slaughter, Blue Steel, Stained, Night (Night Stripe on newer knives), Urban Masked, Forest DDPAT, Scorched, Boreal Forest and Safari Mesh.
Butterfly Knife (13)
Butterfly Knife
Butterfly Knife | Fade
Butterfly Knife | Crimson Web
Butterfly Knife | Slaughter
Butterfly Knife | Case Hardened
Butterfly Knife | Urban Masked
Butterfly Knife | Blue Steel
Butterfly Knife | Night
Butterfly Knife | Stained
Butterfly Knife | Forest DDPAT
Butterfly Knife | Boreal Forest
Butterfly Knife | Scorched
Butterfly Knife | Safari MeshOperation Breakout Weapon Case odds
Valve has disclosed the same rarity odds for every standard weapon case. The Operation Breakout Weapon Case follows them:
| Rarity | Chance per case | About 1 in |
|---|---|---|
| Mil-Spec | 79.92% | 1.25 |
| Restricted | 15.98% | 6 |
| Classified | 3.20% | 31 |
| Covert | 0.64% | 156 |
| Knife / gloves | 0.26% | 385 |
A knife is therefore roughly a 1-in-385 drop, and each case also needs a key. On average that makes unboxing one of the most expensive ways to get a knife. See CS2 case odds explained.
Operation Breakout Weapon Case and knife trade ups
Since the October 2025 update, five Covert skins can be traded up into a knife or pair of gloves. The result is drawn from the rare pool of the case your Covert inputs come from. So five Covert skins from the Operation Breakout Weapon Case can only give knives from the list above.
That makes the pool's average value the number that matters: a trade up aimed at the best knife in this case can just as easily land on the cheapest one. Mixing Covert skins from different cases splits your odds between their pools.
Price it before you sign. The knife trade up calculator lists every possible result from this case's pool with odds, predicted float and expected value at live prices.
More: how the knife trade up works and how the output float is calculated.
Is the Operation Breakout Weapon Case worth opening?
Opening any case is a paid random draw: most openings return a Mil-Spec worth far less than the case plus key. If you want a specific knife from this pool, buying it outright is almost always cheaper. If you want any knife from the pool, compare the price of five Covert skins from this case against the pool's average value in the calculator.
Browse every case: all CS2 cases and their knives.
Frequently asked questions
What knives are in the Operation Breakout Weapon Case?
The Operation Breakout Weapon Case contains Butterfly Knife in original finishes.
What are the Operation Breakout Weapon Case odds?
Knives or gloves drop about 0.26% of the time (roughly 1 in 385), Covert 0.64%, Classified 3.2%, Restricted 16% and Mil-Spec 80%.
Can I trade up Operation Breakout Weapon Case Covert skins into a knife?
Yes. Five Covert skins from the Operation Breakout Weapon Case give one item from its rare pool: the knives listed above. Mixing cases splits the odds between pools.