The small room with the water where you search the corpse for the key, sometimes I have up to 4 tanks jump out of the water... It's random, sometimes it's one, sometimes two, three and four...

Is it intended, or map issue?

I removed all mods from my server, I even removed Sourcemod and disabled all changes put in server.cfg and it's still happening. I don't know what else could be causing it.

The server is running on Linux... I'm out of ideas.