Wow, I just played the map and ive got to say, it has a lot of potential
I liked the fact you could control multiple heroes at once. It really made me feel more involved in the battle. When battling the opposition, it really felt like I needed more skill than usual to really appreciate the array of skills provided by my group of heroes.
Please be aware that the following is meant as constructive criticism
On the downside, the gameplay did become quite repetative after a while. As far as I was aware, the only thing to do was to kill the enemy heroes, and finally their base.
Firstly, my suggestion would be to add various events around the map to make the game less repetative. One possibility would be to create some bosses that randomly appear throughout the map, every 5-10 minutes or so. This could give both teams extra objectives in order to gain an advantage etc. Combine this with some sort of reward and I reckon the fun-factor would double
While the map did have a "boss" like unit at the center of the map, he was very "walk and attack" orientated.
Finally, I feel the map needs some more variation in terms of heros
Each player gets the same 4 heroes as every other player. There should, perhaps, be 10 heroes per side and allow players to pick 4. This would definately enhance the maps replay value
Overall, its an incredibly good start
It shows a lot of potential and I feel its quite unique
with some work, it could be one of the best maps on battle.net
so thats a
3/5 from me, for now anyways