The Desert to Sea Bundle is even better.
I do not know if anyone keeps reading this, desert to sea bundle is back online.
As usual guys - check out /r/gamedeals for games on sale!
Also, if you want to buy Spec Ops - Desert to Sea Bundle. Comes with Bioshock 1 AND 2 for only 2,50$ more.
There are a ton of great PC deals on Amazon right now.
Scribblenauts unlimited - $7.50
Spec Ops: The Line/Bioshock/Bioshock 2 (this one especially might be great for you since you seem to like modern shooters) - $10 (seriously, one of the best deals imaginable)
Tantalizing THQ Bundle (Homefront/Red Faction 2&3/Stalker/Space Marine/Metro 2033) - $10
Darksiders Franchise Pack (Darksiders 1 & 2 and all DLC) - $13.19
Just Cause 2 - $3.74
Dark Souls - $15
Batman Pack (Arkham Asylam & Arkham City) - $10
PS3 Journey Collector's Edition (not quite a great match based on your likes, but 3 amazing games) - $30
After digging all those up, I remembered there was a thread over in r/gamedeals that covered the Amazon sales. I think the above are the best deals or major standouts, but check it out to see if anything else catches your eyes.
A few that jump out that I can vouch for: