After the game's release, it started strong but then declined. When the third season relaunched with the return of the Verdansk map, the number of players briefly increased, but this did not last. The fourth season then added a new map, so what are the updates for the Call of Duty: Black Ops 6 Season 4 mid-season update? This mid-season update for the fourth season will be implemented on July 3rd. Let's look forward to the upcoming performance of the COD series.

I. New Content in Multiplayer Mode
1. New Maps
Fringe (Brewery): A remastered 6v6 map from Black Ops 3, centered around a winery, with added dynamic cover and vertical attack paths.

Eclipse (Nightclub): A neon-lit nightclub scene, supporting 6v6 and 2v2 battles, with narrow passages and multi-level dance floors enhancing close combat.

2. New Limited-Time Mode: Party Ops
A free-for-all mode with randomly rotating mini-games (such as dance challenges, area capture), no scorestreaks, and the top three scorers win. Maps include classic scenes like Nuketown and Babylon.

3. Adjustments to Ranked Map Pool
Hardpoint mode adds Fringe; Search and Destroy mode includes Fringe, Vault, and Penthouse; Control mode adds Rewind map.
II. Weapon and Attachment Updates
1. New Weapons
Olympia: A double-barreled shotgun with high damage and low range, requiring frequent reloading (unlocked through event rewards).
Pickaxe: A melee weapon with moderate attack speed and one-hit kill (unlocked through event rewards).

2. Controversial Weapon Mods
SVD Full-Auto Mod: 300 RPM, two-shot kill within 31.8 meters, but has some drawbacks: severe horizontal recoil (bullet trajectory becomes uncontrollable beyond 25 meters); flinch value of 0.85 (crosshair shifts significantly when hit); barrel, underbarrel, magazine, and stock attachments are disabled, preventing performance optimization.

3. Balance Adjustments for Attachments
Assault Rifle Uniform Enhancements:
Short Barrel: Increase aim-down-sight speed by 5%-7% while jumping
Lightweight Grip: Improve idle sway control by 10%
Battle Stock: Increase movement speed while aiming down sights by 0.08-0.14 m/s.
III. Zombies Mode Updates
1. Limited-Time Mode: Evil Beast Challenge
Summon the red evil beast in Yishui Town, which has a weapon resistance stacking mechanism (repeated weapon damage decreases). Defeating it drops "Legendary Birth" bubble gum and nameplate rewards.
2. Adjustments to "Killing with Corpses" Mode
Disable resurrection-type bubble gums (such as Near Death Experience); increase zombie spawn rate, and threats persist after capturing an area; the winning team receives 2 random fun bubble gums.
IV. Warzone Mode Updates
1. New Limited-Time Mode: Havoc Royale
44-player shrinking circle battle, with each circle shrink triggering random mutation mechanisms, such as:
Crouch Potato: Crouching transforms into a potato bag, regenerating health but reducing movement speed
Melon Heads: Head size increases, making headshots easier, and body damage is reduced by 50%
Make It Rain: Infinite ammo and permanent full-auto fire.
2. Map and Ranked Updates
Cartoon Rendered Rebirth Island: Visual style is cartoonized, supports four-player squads (launching in late July).
Resurgence Ranked Mode Returns: Three-player squads, exclusive seasonal rewards.
V. Limited-Time Events and Rewards
1. "Beavis and Butt-Head" Collaboration Event (July 3 - August 1)

Free Route: Operator "Todd," SVD Full-Auto Mod, Pickaxe melee weapon.
Premium Route (1100 CP): Operators "Beavis" and "Butt-Head," Tracer Rounds weapon blueprint.
2. Double XP Event (July 3 - July 8)
Doubling the efficiency of level and weapon XP acquisition, helping to quickly level up the Battle Pass.

VI. Bug Fixes and Optimizations
1. Critical Bug Fixes
Abnormal enemy and ally marker system (red markers disappearing or incorrect marking).

Range default loading the first backpack configuration error.
Crimson Combat QTE camera offset, Demon Goron battle camera lock failure.
2. Content Adjustments
Remove Mercenary Solo Mode, add Party Ops entertainment mode.
Warzone removes the pure player lobby for Battle Royale, changing to a mix of real players and AI.
VII. Future Content Unpacked Leaks
Potential Collaboration: American Dad character pack (Stan Smith and alien Roger).
Expected New Weapons: MP40 submachine gun, chainsaw melee weapon, boxing gloves.
Operator Return: Black Ops Cold War operator "Simmons" may return.
In summary, the COD21S4 mid-season update overview is as above. This update focuses on entertaining content, and overall, the new map gameplay is quite good, still a very nice map, at least smaller and with more frequent engagements than the remastered Estate map from 15. Finally, it is recommended that everyone take advantage of the double XP event within the next 5 days, to avoid having to grind too much after the event ends.