what if the duel match ends up 0-0?
I dont think this rule has any significance anyway, how often does a 0-0 match show up?
Duel at Dawn 10min time limit, first kill,first part destruction on tie.
About the specific map, I don't really like having it be ALWAYS duel. Since duel is a really close range map and if your team is better at long range stuff than close range you are at a clear disadvantage. I thought about just having it another random map, but that could mean that any picked map can be a map oriented heavily towards either long or close range which just repeats the same point.
I asked lu why duel at dawn and he said that it was because it promoted engagements and is very likely to not end up with no kill after 10 minutes of match.
The point of having a map that encourages engagements is an important one, and so does a map that is balanced in the sense of not promoting any particular range of engagements or playstyle with a noticeable balance of even sides and opportunities for both red and blue. I think its really hard to find a map like this, which is why it could be problematic to implement this kind of rule.
Personally I am torn if we should let this through or not because of this reason.
About the second idea with teams calling a tie breaker if its not going anywhere, I think it's really unlikely it will come to this, and even if it will, I expect it to go the same way like when you want to finish a match quick and both sides agree on finishing it, but for ego reasons no team wants to be the one that surrenders and thus "lose" the game. I think both teams will acknowledge the need for a tie breaker, but no team will step forward and ask the other one for a tie - because it indirectly displays the acceptance of defeat.
Not saying it'll be a bad idea, but it most likely will rarely be ever used because of team ego and pride.