Does this not include custom games? I just got 50 kills with needle rifle for 2000 and shows 0 progression, any help?
nvm, can’t have guest 
It can be in Campaign, Custom Games, or Custom Firefight. No matchmaking.
> nvm, can’t have guest
Is it true that you cannot achieve the custom challenge with a guest also signed in and/or that you cannot achieve the custom challenge by killing the guest with a Needle Rifle?
> > nvm, can’t have guest
>
> Is it true that you cannot achieve the custom challenge with a guest also signed in and/or that you cannot achieve the custom challenge by killing the guest with a Needle Rifle?
you can’t achieve the challenge by killing a “Guest”. Notice the quotations. If you have another gold account, you can sign it in, and kill it continuously.
My way:
Zero Bloom Needle Rifle with bottomless clip on “swat” settings, 3 people spawn in a row, get 10 kills at a time, and then stop to reset multi kills. Go for headshots!
If done correctly you’ll get 105 medals, and 50 kills.
(adding jetpack, gives you 155 medals max)
Have two custom challenges.
50 kills with needle rifle - 2,000cr
500 medals - 2,000cr
With 3 people it takes 1:10ish
with 2 people it takes 1:40ish
with 1 person = ?
Hope this helps anyone trying to get credits
Note Post 117 