Siege Special - Kill 'em All!

Siege Special! It is not like a classic siege map, I am just curious how I can put a certain idea into a siege map. These type of maps are made for entertaining purposes and to see something unusual, like those fashion shows with weird clothes or concept cars.

Hmm, it looks like an usual map, but hey... where is the pole? Wheeere? Oh no, there is no pole! So you have to eliminate ALL defenders to get through!

I hope I managed to make this map anti-glitch and anti-prerush, but if you discover you can walk on walls or can do a prerush, please inform me, and I will fix that as soon as I can. There is one secret way included somewhere.

Enjoy!
And feel free to feedback.