Originally Posted by Dirty130
I did the End Of The Line way for 45 minutes (entire level time) and got 22,000XP. However, when I S Rank Expendable on casual I get 12,000 - 14,000XP in 17 - 20 minutes. So as of right now I don't know, End Of The Line seems the more risky way of the two.
Yes, I just tested this out to see what I can rack up and I got 16k on my first run and 15k on the second run both under 20 minutes, about 160 kills, no deaths and all the data collected.