Pros:

nice idea
second map is pretty good but a little open
traps can be challenging to live through

Cons:

sound bug to outside map
no real finale
no traps that can cause instant death

Conclusion:

really good campaign to play but heres some ideas
1. add trap doors to fall through 
2. add lasers to swarm around small room that you gotta jump or crouch to get through
3. ceiling spikes
  with those 3 ideas make a good 3rd map i will be waiting :)