Just in case it is of interest to the players who'd like to see insane speed maps on public servers: we play 100x rounds on christmas and other special occasions on our testservers. While it is quite fun (especially if you have a cold beer while playing with your colleagues) it is also quite literally insane. At 100x not only does combat between large stacks resolve in minutes, you also quite literally can't go afk, ever. If you join 3mins late, the market in the early game is completely drained. You also quite literally need more than one person playing the same account to properly move your troops at that speed.
It is fun because of how wild it is, but it is no way suited as a serious game mode.
How do I join if possible? And how do I bring friends?
Would probably not play anything like this on regular basis, but once a year or two would be cool.