Hey, guys !
So, i'll make a pretty short and direct guide.(even though, i guess it doesn't really need a guide)
The 5 maps of Forces of Nature DLC are:
Aftermath
Artillery
Cove
Jacinto
Raven down
Since there's no Private Guardian for us to boost, all we have to do is to win a match on each of the maps above playing by ourselves OR trying to gather some friends(10 friends) and split them up in 2 parties of 5, then, you gotta arrange someway to start to search for a quick match of Guardian at the same time(maybe, put two people in a party on xbox live, the hosts of each group of 5 in-game), but i don't really know if this will work, because Guardian is a really famous playlist, so PROBABLY it will always be crowded and matching up with your friends can be pretty hard..
plain and simple.
Since i've made this short guide, i know i'll get a lot of negative votes, because people.... well, they are people.
Anyway, same old boring favor: please, if you negative, tell me why in the comments :)
EDIT: while going for this one you can also try to get the I've Got This! achievement
The I've Got This! achievement in Gears of War 3 worth 61 pointsKill 10 opponents as the leader in a round of Guardian on a Forces of Nature map. but it'll be kinda hard to get 10 kills as the leader, because when you are the leader, usually you try to protect yourself a little more, but try this out, guys !