Hey insta, your arena_offblast map is one of our favorite custom maps and we have only found 4 maps on fpsbanana decent enough to put in our rotation. 184.108.40.206:27015 "Kookies + Kreme FREE $$$ 24/7 Arena" Add me on steam and come play sometime!
I hope you don't mind but I recently added your map arena_offblast_b1 to the tf2wiki listing of custom maps. If you object to this posting I will remove it post-haste.
~ZeekNyne(War Never Changes...)