Suspension of Disbelief
I definitely didn't go into this movie expecting it to have logistics accuracy of Tom Clancy, but for a name that is obviously borrowed from the Half-Life video game mod, I didn't expect to be a total disappointment.
// Spoilers herein
A lot of things I was able to let go - dialogue between military personel and heads of state that were totally rediculous. A total communications black out, but a secret service agent gets authorized to bring his nifty radio on board so he doesn't get homesick - a radio by the way that doesnt work one minute, but the next it's working with crystal clarity, even when the bad guys are still having problems from "atmospheric interference", the radio is still a-ok. Or maybe when the 3 SEALs are unable to shoot someone who walks into clear sight for 3 seconds. And, of course, the enemy submarine captain is "brilliant" for hiding under the Queen so it won't be fired upon... then all the sudden they moved, without any explaination so that they could be destroyed.
Ok, so I can let all of that go. Then, there is using a fire extinguisher -- A FIRE EXTINGUISHER -- to FREEZE the electronics of the bomb to stop it. If anyone didn't particularly understand this, electronics don't stop working when you freeze them. Infact, freezing integrated circuits and microprocessors makes them work *better*. This scene alone takes the film from a silly romp to one of the stupidest movies ever made.