"After the war game was restarted, its participants were forced to follow a script drafted to ensure a Blue Force victory. Among other rules imposed by this script, Red Force was ordered to turn on their anti-aircraft radar in order for them to be destroyed, and was not allowed to shoot down any of the aircraft bringing Blue Force troops ashore." https://en.m.wikipedia.org/wiki/Millennium_Challenge_2002
So yeah lots of the big ships might not be that useful in a present-day conflict if they can get destroyed by suicide-attack boats. Of course that puts the whole need for the amount of military funding/pork into question and that makes the military-industrial-congressional complex very nervous.