Pros:

-Bots are using melee weapons
-Bots are closing saferoom doors and other
-Bots take the lead 
-Bots will continue to play if i die

Cons:

none

Conclusion:

this is great and awesome
this mod help me :D

Pros:

-WOW posters change to portal
-portal music
-portal characters in the poster

Cons:

-cannot hear the music because of the gun shooting
-i can still imagine that it's midnight ridiers concert...
  AWWW

Conclusion:

wow! AWESOME! Great! NUmber 1 !!!

Pros:

-Great HUD!
-health of other survivors are shown
-you can see your name
-new l4d picture

Cons:

noooooooooone.....

Conclusion:

THIS ONE IS VERY AWESOME I WILL NEVER CHANGE THIS HUD

Pros:

-i love desert maps
-traps around that can alert the horde
-witch near the safehouse
-Dark and creepy chapter 5th and 6th
-finale was great
- you will see l4d1 survivors dead

Cons:

-lost easily
-bots are so slow
-chargers always catch me

Conclusion:

this map is so great i recomend you to play this map!

Pros:

-no ammo inside the safehouse
-great map
-easter eggs are cool
-finale is challenging
-secret doors around
-great atmosphere
-riding a rocket laucnher at the finale is cool

Cons:

ummm cant think

Conclusion:

this map is so awesome and very epic for me !!

Pros:

nice map
challenging 3rd map and finale
bots are so stupid

Cons:

explosions

Conclusion:

bots jump when they are at the ladder

Pros:

-FUN MAP
-portal easter egg at the last chapter is so great
-the last chapter is my favorite part
-TANKS with new skins
-new melee weapons
-mission four ending is riding on a train

Cons:

none

Conclusion:

VERY AWESOME MAP AND VERY EPIC!!!!

Pros:

-so many horde attacks
-special infected inside the cage
-so many explosions it makes the game cooler
-medkits and weapons around
-the bots are so noob

Cons:

The elevator is so very very nice it attracts hordes and there are three or four tanks at the middle and the music is great!

Conclusion:

very awesome map.

Pros:

Fun
hard for the bots to survive
nice map

Cons:

i like the low gravity part

Conclusion:

it's relly funny when i see mario and luigi dead
but sad for a bit :D