I see that most of the people here don't like maps where mid is far away (ex, Trees / tnt / desert) so here are 2 very simple solutions.
Option 1 (the fun one) Just TNT jump to mid.
Pros - You are flying! You get to middle fast! and You are Flying! :D
Cons - wouldn't recommend to anyone that has a good K/D ratio (for obvious reasons) but if you do fail at the start you can just play again after 1 min so not much time is lost
Option 2 (not as fun but I understand) You can just leave the game and wait for the next one,
pros - You get to play a different map
Cons - you won't get to fly D:
For this tho I would recommend iron rank but it is not necessary
In my opinion I think the first option is better just make sure you change your kit back once you play on a "normal" map and don't forget to have fun :D