I would personally buy he DLC's now, steam only really change the selection of games on sale rather than the sale prices.

I'd recommend checking out  a British 24 hour ration pack. Honestly they don't taste as good as American MREs but they'll keep you going for a lot longer, it includes different foods, but the general mark up is a breakfast,  lunch, dinner and an assortment of snacks to keep energy up throughout the day, the only disadvantage of them is like I say , they don't taste as good, and can be worse to cook in the field or, less tactical,  as they rely on boiling water (Generally made via river water in a mess tin and open fire) to be warmed, unless you fancy a cold meal, I guess the counter argument for that would be that any water can be used as long as you have a means to heat it quietly that is not visible.  I.e a JetBoil. 

It's taken me long enough to post here since making an account,  so hey, I'm Xilver,  I was set  to make an account on Zoklet before it shut down but missed the mark,  I so I hope I can earn myself a place amongst you all here.