And Mr. Bombay answered that in post #3 of this thread:

http://www.KICentral.com/forums/index.php?...st&p=179261

o.k. since that question was answered here is another one.

if the story behind Son of Beast is you are going to find him in your PSV why was the design on the trains bio-hazardy looking? because i never heard any thing about Son of Beast being hit by a nuclear bomb.

well how else do u get a big bad looking "beast" i think you mix in some urainum! whitch its all over the place! and The Beast "hair" fell into the urainum! it then morph into "Son of Beast" and now its loose! you need to go get it and bring it back to the testing feild to kill it! before it takes over the food chain!

my little summary

^ who knows why they have Bio-Hazzerd on the trains. Who Cares, those aren't the trains they use anymore.

The station still has the bio-hazzard sign on the outer wall. And the words: Outpost 5. Too bad they stopped the guy from talking in the express station.

The station master can still speak, you just have to talk to the right person to hear about the closing of the main tunnel.