New Map Need Ideas

Ok... If any of you have ever played the Starcraft Game Normandy Invasion you can be very helpful. I already added the 100 upgrades and some new upgrades such as speed and health. I need ideas for the heroes (tank, plane, flamethrower, and marine) as you can see i lost the sci vessel because EMP shockwave wont do crap anymore.
I also need help help retrieving the heroes so that one can switch heroes however the level must be maintained. (i was planning to do this simmiliar to what is done in pokemon so if anyone know the triggeres please tell me)

1. this belongs in map dev

2. I did play that map, I loved it but it took too damn long :P

3. The emp could be eaily recreated use various differnt method

4. You sound like a first-time mapmaker and I suggest just fooling around with all the triggering before you try to talckle a project like this.

thanks for the tips and your right i will try and re-create the EMP I know what your talkin about w/ the time length and there is no way i will have it take an hour it will probabaly be in the 30 min. range

PS
I could also use some models and/or skins for the map...Loading screens and minimap screens would also be appreciated (yes i know this in the wrong section...just calm down people)