Not just first-person shooters but other games like MMO's adventure games tips and tricks in dungeons and also like to with this if we currently have keys of a giveaway for the game to also link it if there are any more keys left mainly cause I feel like I miss out. 

Or sometimes I watch a trailer for the game and think heck, yeah I'm try it and find out way later there were special alien gear or codes for the same game and I'm like dang FML.

I like to see more of this for games.