I like the map, no doubt about that

... But really... making the game harder than it already is? What the hell dude... It's impossible for us to kill the 1st boss alone :/ ... Oh maybe i should add the fact that we are about 4 - 5 people playing this map seriusly from time to time, and trying to make it as far as possible, but we keep playing version 1.272 since it's better than 1.28 since we simply just can't handle 1.28 :/ ... If you could make the third boss easier by any chance that would be great, since it's all to hard with it's polymorph and chain lightning... It keeps killing us and we just don't stand a chance :/...
Otherwise we really like the map and enjoy playing it

So keep up the good work!
1 miner: Knight (speed), 1 construction: commander, Templar (mental), 1 medic: marine (luck), 1 medic: marine (int), 1 archeologist: marine (accuracy)
Miner should mine whenever it's up, the rest is fairly standard hack and slash. Pick up the red box drop when you can.
Construction should use whatever rock the miner gets as well as fairly regular stone spells. Periodically they should warp to the dropship and buy the stone from the shop. Doing this they should easily have 3 stone towers & 1 herb bed (essential team buildings).
The luck marine should aim for a machine gun by the end of level 1. This'll make the first boss a joke and help on future bosses. Make sure they buy some int and tele to dropship for restores.
The int marine makes health potions. No need to go nuts. If everything is getting killed and no one is getting too hurt then they should be busy making pots. Their equally important job is picking up whatever lodestones the miner drops and converting them in to electromagnetic grenades (these are not to be used on anything but boss fights, and will cut a significant chunk out of their life).
The accuracy marine simply needs to level up to 10 accuracy and get the red drop box. As an alchemist their job is to pick up herbs and place them in neat piles. This'll take far less time the more practice they get. A visual indication of how well your team is actually going is to see how many herbs are left throughout gameplay (a few means good, none means people aren't paying attention to killed, many means you may as well quit now).
General tips: Stay close together. It's a team game. This helps the arch identify herbs, the constructor to find miner drops and the medics to heal.
Grenades are not for getting money. It's important to think of grenades as a lifesaver. Grenades are worth 100g, so unless you're killing close to that amount of units, or you're saving (actually saving) someones life then don't use 'em.
Never use electromagnetic grenades unless you're on the 3rd level or fighting a boss. Spam them on bosses 2 and up.
Money is used for 3 things apart from professions- upgraded armor (this reduces damage take to mostly spells for lvl 1 & 2), machine gun and stats (should aim for 200$ cap for important stats). As you rank it'll become easier to get money, so if you're playing with a tightnit group you should aim for as many ranks as your commander can handle.
Any money without a specific purpose should be sent to your commander. This'll get important buildings done.
To push ranks you can use the expanded training center xp purchase to get beyond level rank restrictions.
Boss 1 counter: Luck marine with machine gun.
Boss 2 counter: Rush with 10 int converted mobs, have medics paying attention.
Boss 3 counter: Have a medic and other in north position, a medic and other in south and a person east or west. This'll halve damage from chain lightning. Make sure everyone is very far or on top of others. Make sure everyone has a medkit, health pots and some rejuv pots. Teleport if really in trouble, make sure 2 people are on planet to kite the boss. Having towers up really helps. Use electro grenade spam until your team works it out.
Boss 4 counter: Highly ranked and geared players.
(I'm sure I've missed a lot, but all this should give you an idea of some rookie mistakes.)