ISO Nightshade vs Rezi 12 in MW4
Data updated · Latest official patch:
ISO Nightshade is ahead on 11 of the 12 key stats that both weapons report; Rezi 12 is ahead on 0, and 1 stat is tied. ISO Nightshade's biggest lead is fire rate (923 RPM against 150 RPM). Fire rate and magazine size are Activision's numbers; the other key stats are community-reported by CODMunity, read November 4, 2026.
Open both in the compare toolBuild with ISO NightshadeBuild with Rezi 12
ISO Nightshade is an SMG and Rezi 12 is a shotgun. This pair has a page because both are among the 12 weapons with the highest Multiplayer pick rate in CODMunity's list.
Official numbers
| Stat | ISO Nightshade | Rezi 12 |
|---|---|---|
| Fire rate | 923 RPM Ahead | 150 RPM |
| Magazine size | 30 rounds Ahead | 6 rounds |
| Reserve rounds | 90 rounds Ahead | 24 rounds |
| Total rounds | 120 rounds Ahead | 30 rounds |
| Unlock level | Player Level 4 | Player Level 4 |
| Weapon levels | 64 | 60 |
| Apex Attachment | ISO Trace | Rezi 12 Enforcer |
| Apex blocks | Optic and Ammunition | no attachment types |
From Activision's launch weapon sheets. A damage table and time to kill are not published.
About ISO Nightshade and Rezi 12
ISO Nightshade
Full-auto SMG with a fast rate of fire that balances controllability, mobility and close-range stopping power.
Apex Attachment, ISO Trace: RFID ammunition tags targets on impact and shows their movement and direction as a red dot on the optic display. It blocks optic and ammunition attachments.
Rezi 12
Fast-cycling semi-auto shotgun with controlled shots and smooth recovery for close range.
Apex Attachment, Rezi 12 Enforcer: Enables pump-action cycling and adds a side-saddle of hot-loaded explosive slugs. Activision lists no blocked attachment types for it.
Community-reported stats
Community-reportedBase values with nothing attached, read from CODMunity on November 4, 2026. Unverified.
Across the 31 rows with a direction, ISO Nightshade is ahead on 21 and Rezi 12 on 2; 7 rows are tied and 1 row is not compared because a weapon has no value.
- Official numbers: ISO Nightshade is ahead on fire rate (very wide), magazine size (very wide), total rounds (very wide), and reserve rounds (very wide); Rezi 12 leads no row of this group.
- Mobility: ISO Nightshade is ahead on ADS movement speed (narrow), movement speed (tiny), strafe speed (tiny), tactical sprint speed (tiny), sprint speed (tiny), and firing movement speed (tiny), and Rezi 12 is ahead on crouch movement speed (tiny).
- Handling: ISO Nightshade is ahead on reload time (very wide), drop speed (wide), sprint to fire speed (wide), ADS speed (wide), ADS out speed (wide), and raise speed (wide); Rezi 12 leads no row of this group.
- Recoil: ISO Nightshade is ahead on vertical recoil (very wide), horizontal recoil (wide), and horizontal gun kick (moderate), and Rezi 12 is ahead on vertical gun kick (very wide). Level on ADS idle sway and ADS gun bob.
- Range and bullets: ISO Nightshade is ahead on bullet velocity (wide); Rezi 12 leads no row of this group. Level on damage range and bullet penetration.
- Hip fire and flinch: ISO Nightshade is ahead on flinch received (wide); Rezi 12 leads no row of this group. Level on hip idle sway, hip gun bob, and hip turn sway.
- Fire rate and ammo: no row has a leader. Not compared: headshot multiplier.
Brackets give the size of the gap as a share of the larger value: tiny under 2%, narrow under 5%, moderate under 10%, clear under 20%, wide under 40%, very wide above.
The widest gaps across both tables are fire rate (ISO Nightshade 923 RPM against 150 RPM), magazine size (ISO Nightshade 30 rounds against 6 rounds), and total rounds (ISO Nightshade 120 rounds against 30 rounds).
CODMunity lists no stat change for the ISO Trace.
Rezi 12 Enforcer, community-reported effects from CODMunity: Fire rate −50% (worse).
Attachment effects reported for ISO Nightshade
The community-reported attachments for ISO Nightshade with the largest change to a key stat, according to CODMunity.
- 50 Round Drum Mag (magazine): Magazine size +67% (better).
- 40 Round Mag (magazine): Magazine size +33% (better).
- No Stock (stock): Vertical recoil +30% (worse).
- 212 LC40 Comp (muzzle): Horizontal recoil −25% (better).
Attachment effects reported for Rezi 12
The community-reported attachments for Rezi 12 with the largest change to a key stat, according to CODMunity.
- ZLR 12GA Ported 21" (barrel): Magazine size +67% (better).
- ZLR Rogue 90 25" (barrel): Magazine size +67% (better).
- Haebang 635R-7 (barrel): Magazine size +33% (better).
- No Stock (stock): Vertical recoil +30% (worse).
| Stat | ISO Nightshade | Rezi 12 |
|---|---|---|
| Mobility | ||
| Movement speed | 4.80 m/s Ahead | 4.72 m/s |
| ADS movement speed | 3.20 m/s Ahead | 3.09 m/s |
| Sprint speed | 6.33 m/s Ahead | 6.26 m/s |
| Tactical sprint speed | 7.43 m/s Ahead | 7.34 m/s |
| Crouch movement speed | 2.23 m/s | 2.25 m/s Ahead |
| Strafe speed | 3.67 m/s Ahead | 3.61 m/s |
| Firing movement speed | 4.26 m/s Ahead | 4.25 m/s |
| Handling | ||
| ADS speed | 240 ms Ahead | 340 ms |
| ADS out speed | 300 ms Ahead | 400 ms |
| Sprint to fire speed | 110 ms Ahead | 160 ms |
| Reload time | 3267 ms Ahead | 6131 ms |
| Raise speed | 967 ms Ahead | 1233 ms |
| Drop speed | 500 ms Ahead | 800 ms |
| Recoil | ||
| Vertical recoil | 40.9 Ahead | 98.5 |
| Horizontal recoil | 13.3 Ahead | 17.4 |
| Vertical gun kick | 36.5 | 21.3 Ahead |
| Horizontal gun kick | 5.6 Ahead | 6.1 |
| ADS idle sway | 0.54° Tie | 0.54° Tie |
| ADS gun bob | 0.09° Tie | 0.09° Tie |
| Range and bullets | ||
| Bullet velocity | 530 m/s Ahead | 340 m/s |
| Damage range | 100% Tie | 100% Tie |
| Bullet penetration | 9.0 in Tie | 9.0 in Tie |
| Hip fire and flinch | ||
| Hip idle sway | 1.63° Tie | 1.63° Tie |
| Hip gun bob | 1.09° Tie | 1.09° Tie |
| Hip turn sway | 20.9° Tie | 20.9° Tie |
| Flinch received | 0.22x Ahead | 0.31x |
| Fire rate and ammo | ||
| Headshot multiplier | 1.30x | not reported |
"Ahead" marks the better value of a row; "not reported" means no value, not zero.
Not reported
The source reports no headshot multiplier for Rezi 12.
Pick rates and tiers
Community-reportedOther sites' own figures and opinions about ISO Nightshade and Rezi 12, not Activision data.
| Figure | ISO Nightshade | Rezi 12 |
|---|---|---|
| Multiplayer pick rate (CODMunity) | 6.2% | 4.1% |
| ggranked tier | Tier S, 761 ms time to kill | not reported |
| DMZ Radar tier | Tier S | Tier A |
| Community builds listed | 2 Multiplayer and 1 DMZ | 4 Multiplayer and 2 DMZ |
Latest official changes
The newest patch notes that change ISO Nightshade or Rezi 12, as listed on this site.
ISO Nightshade: First weapon tuning update, October 28, 2026
- Left Lower Arm Damage Multiplier changed from 0.95 to 1 (+5.3%).
- Left Upper Arm Damage Multiplier changed from 0.95 to 1 (+5.3%).
- Left Hand Damage Multiplier changed from 0.95 to 1 (+5.3%).
- Right Lower Arm Damage Multiplier changed from 0.95 to 1 (+5.3%).
- Right Upper Arm Damage Multiplier changed from 0.95 to 1 (+5.3%).
- Right Hand Damage Multiplier changed from 0.95 to 1 (+5.3%).
No change to Rezi 12 is listed in the patch notes tracked on this site.
Weapon pages, builds and tools
More weapon comparisons
Other pair pages with ISO Nightshade
- ISO Nightshade vs VEL 46
- ISO Nightshade vs Wz.55 Striga
- ISO Nightshade vs X-58 Nyx
- ISO Nightshade vs PPSh-41
Other pair pages with Rezi 12
Frequently asked questions
What do the Apex Attachments of ISO Nightshade and Rezi 12 do?
ISO Trace (ISO Nightshade): RFID ammunition tags targets on impact and shows their movement and direction as a red dot on the optic display. It blocks optic and ammunition attachments. Rezi 12 Enforcer (Rezi 12): Enables pump-action cycling and adds a side-saddle of hot-loaded explosive slugs. Activision lists no blocked attachment types for it.
Where is ISO Nightshade ahead of Rezi 12, and where is Rezi 12 ahead?
On CODMunity's base values (community-reported, read November 4, 2026): ISO Nightshade is ahead on fire rate (very wide), magazine size (very wide), total rounds (very wide), reserve rounds (very wide), vertical recoil (very wide), reload time (very wide), and 15 other rows. Rezi 12 is ahead on vertical gun kick (very wide) and crouch movement speed (tiny).
How often are ISO Nightshade and Rezi 12 picked, and what tiers do they have?
CODMunity's Multiplayer pick rate is 6.2% for ISO Nightshade and 4.1% for Rezi 12, so ISO Nightshade is picked about 1.5 times as often. ggranked ranks ISO Nightshade (tier S) and does not rank Rezi 12. DMZ Radar places ISO Nightshade in tier S and Rezi 12 in tier A. These are community figures, not Activision data: CODMunity and the tier lists, read November 4, 2026.