1. Array 2. China Town (although its alot like MW3 maps so hard to say) 3. Downturn 4. Wasteland

Thats about all I dislike, I think all the rest are pretty decent in my opinion.

In a nutshell, everything from MW3.  You know, they actually aren't bad.  But the problem is the lack of creativeness is what makes them suck.  There really is no diveresity to them, its like they laid one particular design out and just changed the settings/scenery to create 16 maps(I don't have the new ones). 

If I were to inlcude previous maps...COD4-Chinatown, Bog, Bloc MW2-Derail, Fuel, Carnival BLOPS-Hanoi, Crisis, Cracked, Berlin Wall, Stockpile, MW3-All 

Dome (MW3)

Downturn

Village

Underground

Crisis

Bog

Countdown

Roundhouse

Terminal

Wasteland

Since I only have played CoD4 till rank 30, I will not include any on the maps from that game. However I will include MW2 and MW3 maps.

In no particular order

Downturn

Fuel

Strike

Seatown

Outpost

Thats probably my 5 least favourite maps, I can't name 10 because all of them are pretty decent.

-Shipment (CoD4)

-Killhouse (CoD4)

-Bog or Bloc (CoD4) I get the two confused. The one where the middle is wide open and each side of the map has two long, linear hallways leading to the other side. That's the one I meant to put.

-Dome (WaW)

-Quarry (MW2)

-Rust (MW2)

-Nuketown (BO)

-Downturn (MW3)

-Carbon (MW3)

-Mission (MW3)

-Interchange (MW3)

As you can see, from the past Call of Duty games, the only maps I really don't like are the small maps. Only in MW3 out of all the CoD games do I dislike more than 3 medium+ size maps. The only small map on MW3 is Dome and I enjoy playing on that map anyways. Even though the spawns are still horrible on Dome. But the spawns suck on even the largest map so I won't exclude any map because of that.