Why it ranks here
COD21：BO6 SA80 (SG552) has 779 subscribers and ranks #63,213 in Left 4 Dead 2 (#63,704 overall). Over the last 7 days it gained 0 subscribers (-2.0%) and over 30 days 0. Weekly velocity is 0.0 subs/day, accelerating (0.00).
Metrics from 9 stored snapshots. How ModOrNot ranks mods →
Subscriber change since tracked
View change since tracked
Favorite change since tracked
Platform availability
Xbox 360 version, backward compatible on Xbox One/Series X|S. Add-on content is Steam Workshop only; console builds do not run Workshop mods.
Availability is only claimed when an official source proves it. A platform we cannot verify is shown as “Not verified” — we never assume a PC Workshop mod runs on a console.
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by Jo
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16.7K | +1.5K | 99.9 |
Frequently asked
Frequently asked questions
Is COD21：BO6 SA80 (SG552) available on PC?
Yes — COD21：BO6 SA80 (SG552) is available on PC for Left 4 Dead 2. Verified against the official listing.
Is COD21：BO6 SA80 (SG552) available on PlayStation 5?
No — Left 4 Dead 2 itself is not available on PlayStation 5, so neither the game nor its mods can run there.
Is COD21：BO6 SA80 (SG552) available on Xbox Series X|S?
No — Left 4 Dead 2 exists on Xbox Series X|S, but its mod system does not support COD21：BO6 SA80 (SG552). Xbox 360 version, backward compatible on Xbox One/Series X|S. Add-on content is Steam Workshop only; console builds do not run Workshop mods.
What does the ModOrNot Score mean on this page?
It is a 0–100 momentum signal combining 7- and 30-day subscriber velocity and acceleration. Higher means the mod is gaining adoption faster relative to its own baseline — not that it is bigger.
Are these the real Steam Workshop numbers?
Yes. Subscribers, favorites and views are read from the public Steam Workshop page and stored as snapshots; the deltas are computed from those snapshots, never estimated.
How is the rank computed?
Rank is the mod’s position among active mods of the same game, ordered by total subscribers. It is recomputed every collection cycle.