Do the 21 maps at launch include forge maps?

Games Halo 5: Guardians
1

I’ve read numerous posts saying that 343 stated that the 21 maps available at launch would not include forge made maps. Is this true?

Thanks!

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Also, if you have a link to where this was stated via twitter, HaloWaypoint, NeoGaf or any other site confirming this please post it here.