Ok, start up Soldat, and click on Deathmatch as the game type. Now switch the game type to Infiltration. Look down for the Survival Mode and Realistic Mode tabs. They're there, correct?

Now click on CTF. The Survival Mode goes away. Then go to Infiltration again, and the Survival Mode button is still gone...

It seems wierd to me. Maybe it's not a bug...but I just thought I'd report it.