How to deal with losing a soldier, or at least how I'm trying to deal with it.
You cry. Don't care how tough you are, how many haj you've killed, or how many scare badges you wear, you'll shed tears.
You talk. Talk to your buddies, talk to the chaplain. But you need to talk about the one you lost.
You take care of yourself. Get some sleep even if it means pills, eat but don't over eat. When you mourn the dead you still have to care for the living.
Expect your emotions to ebb and flow. Little things will make you tear up and get a lump in your throat. That's normal, deal with each episode as it comes up, and don't worry about the past or the future.
You laugh at things that really aren't that funny, or some things that are, and it is because you need to laugh. Laughter is good medicine.
Drink sparingly. Two drinks is ok, three is a warning sign, four is too much.
Life goes on, and you need to remember that.