FubarAll the information that we have about how ctf plays out competitively is super dated. One thing that comes to mind is the player outline valve has added to flag carriers, it's probably not a big deal but I do wonder if that now gives out too much information for the game mode to be compelling in a competitive setting. picking up the flag puts you at a fairly large disadvantage.
The other question that's always at the back of my mind is "would this map make for a good spectator sport?". I don't know that tf2 ctf can be that. Ctf is definitively one of the modes that can drag on and I'm not sure how to address that... not to mention that caper outlines probably makes it harder to cap than in the early days of ctf_turbine.
As long as it's made to be faster paced, with smaller, more open maps and with short despawn times, I think it could make for a fairly interesting spectator sport. We'd get a lot of clutch cap or intel steal moments similar to what happened with bird noises and 8K, except for capping intel. Hell of a lot better than Valve's A/D that they're pushing on everyone in matchmaking.
We just need a new map that does it correctly, because pretty much none of the other CTF maps (even community ones) are catered towards 6s.