What would you like to see returning from World at War or Black Ops? 
 
Singleplayer 
- Death Cards (Great Idea, kinda missed them in Black Ops) 
- Intel Cheats (Would make collecting Intel more rewarding) 
- Less Cinematics in the Campaign (They were cool for the first time, but if you want to replay a certain mission, they can get annoying) 
 
Multiplayer 
- Bayonets (I would really like to see them returning, but a bit nerfed. Maybe that you can hold down the Melee key for charging, if you tap it, it makes that swiping animation) 
- Bouncing Bettys (As a variation of the Claymore) 
- Stielhandgranaten / Stickgrenades (As a variation of the Fraggrenade; they would not roll, which could be a pro or a con) 
- Signal Flares (As a variation of the Flashbang, the effect is weaker, but would last longer) 
- Molotov (Could work as a "Path-Blocker" during tactical gamemodes) 
- Aperture Sight (Loved it in WaW, and missed it in Black Ops) 
- Sniperrifles without Scopes (I liked to switch from my K98 Bayonet to my scoped K98, sadly they took that out) 
- Ingame Create-A-Class (It was possible in the Call of Duty 4 Mod Warfare (a mod created by IW, afaik) so why don´t add it to the normal Multiplayer) 
- Maps with places that require swimming or a Flashlight (Both were possible in the Campaign) 
- Customizable Camos (Like the Emblem Creator: you choose the pattern and the Colors, plus the standard Camos) 
- Camos like the Raindrops from "Blowtorch & Corkscrew" or the ice from "Project Nova" ( They just look badass in the campaign) 
- Unique Knives for each MP Faction (They had great knives; the Kabar, the Karambitknife etc, why not use them in Multiplayer?) 
- Killstreaks like the UAV controllable? (Like you can control the UAV, and get extra points for each marked enemy or for each kill that was made by a teammate) 
- Firemode Selection (Please. Make it possible.) 
- Prevent Kniferunning with a longer Knifeanimation (Im sick of them.) 
- Wager XP Modes (I love Wagermodes, but I need XP more often than CP) 
- More than 1 Attachment without Perk possible? (Could work like Battlefield 3; there are Categories like Optics, Underbarrel and Misc. So maybe you could choose a M16 with Reflex and Extended Mag, and add a Silencer with Warlord) 
- More Attachments (Add Bipods, Flashlights for Pistols etc) 
- More different Scopes (Make the Russian Scopes usable with a M16, and add the Aperture, Red Dot, Reflex, ACOG, SUSAT and Variable Zoom Scope) 
- Dual Wield only for Pistols, or SMGs with low Rate of Fire  
- A Crossbow without Explosive Tips, make them an Attachment  
- Less Semi-Auto Sniperrifles 
- Make the Semtex more like the N° 74 ST 
- Bigger Maps with more open Space (WaW Style) 
- Weapons from WaW (Mosin-Nagant, M1 Carbine, StG44, Sten, MP40, PPSH, TT-33, Double Barrel Shotgun) and Black Ops (Commando, G11, AK47, MPL, Kiparis, WA2000, Olympia, KS-23, Model 1887, Makarov, M1911) 
- Remove Rapid Fire and add Double Tap 
- Don´t replace the Default Classes with Custom Slots 
- Don´t let Teammates take Carepackages unless you allow it 
 
Coop: 
- Campaign Coop (Like in WaW) 
 
Zombiemode: 
- Difficulties (Sometimes I just want to kill some Zombies) 
- ALL Weapons of the Game (I never knew there was a DP-28 in WaW until I played MP, and I missed the M60 in Black Ops 
- Don´t make the Zombies stronger that fast, make them MORE. 
- Choosable Attachments when Pack a Punching (Maybe like the List from MW3´s Survival Mode) 
 
Let me hear what you think!