When Commander Tom Chandler arrives on the ship after the battle, a Sailor rings the bell twice, and says "Nathan James, Arriving". This is a custom in the US Navy to ring on officers of high ranking to render honors. According to customs, Commander Chandler would receive four bells, instead of two.
When Jeter blows out the candles, the accompanying stage lights turn off slightly later.
When Danny is in the power plant trying to hold off Granderson's men he is severely outnumbered and tells Chandler his position is about to be overrun. His M4 rifle is equipped with a M203 grenade launcher, considering the circumstances it would make sense to use it, yet he doesn't. Plus shortly after he stops and takes the time to use a hand grenade, but firing a round from his grenade launcher would have been must faster.