I will need a full lobby of people to get the ivory skin. I can glitch the lobby so that there is only bots, it will be extremely easy for us to get the achievment and skin w/ a full lobby. if you are interested please message my gamertag: Speedy Thermal
in the message say "I am interested in ivory"
I will be doing this for the next 2 days.
here's the rules.

When we get into a bot lobby whoever is leader everyone needs to stick with them and get the bots down (except the bot leader) and let our leader get all of the 10 kills. Since this has to be on a forces of nature map, after the leader gets his 10 kills we all need to let the bots kill us so everyone can have a turn as leader. we will keep repeating this process until the other team has won 2 round. Then we will win the rounds. After this all of us should have the ivory skin and if more people want to join i will let them join. leave your gamertag below and message me the message above at my gamertag: speedy thermal