Just thought I would give u my view about your map !

Its great. I dont think u need to give the player a sniper rifle, it would ruin it.
Maybe u could make it more difficult, by adding a few more enimies.
Also, can you not change it so some of your allies run with you when you move accross the bridge? You end up on the other side alone !
1 problem I found, is the map doesnt end. I killed every1 I could see, but nothing happened.
Out of interrest, how long did it take you to design the map?
When will u realease the map with defending the bridge objective?
As ive only got a 56k modem, I hope more people will design single player maps!
Cheers
