While this is by no means the only way to do it, what I consider the best (and probably unintended) way to go about the beginning:
(http://i.imgur.com/DiryX.png)
After the beginning I find it really boring, it's just a matter of slogging it out and the capsules won't be threatened for an extremely long time.
I will give some information to the newbies who try this map. This is because some people might find it frustrating to win.
READ AT YOUR OWN RISK!!!
In the image I have highlighted and noted some parts that are dangerous. I will give you some tactics and hints to to help you win the map.
Orange circle at the top- Those are where creeper "Diamonds" Appear out of nowhere. To counter them, just have some blasters go really close to them when they appear. Later in the game, when you have enough energy, just replace those blasters with 1 launcher, that should take care of it. The diamonds appear in this order: First the left circle, then the right, then the middle. Make sure to pause!!!
Red circle connected to the squares- When you reach the large chamber with the two squares in it, DO NOT DIG THE SQUARES UNLESS YOU ARE READY!!! When ready, dig only ONE of the squares and have defensive positions in the three holes at the top of the chamber above this one and on the two sides as well. The creeper in the red square, when you dig the block, will transport to the large chamber above it and destroy anything there. Don't go aggressive and fight the creeper, be defensive and just try to hold out, I used two blasters on the 3 holes at the top and 3 on the holes at the side. Use the rest of your fighting force to stop the creeper in the square from teleporting there.
Yellow line- That area has two weak emitters and two gates, each very close to one another. It shouldn't be a tough fight, the drones are weak but they are extremely fast. Because of them, a lot of your units will be destroyed, so have some spare units ready and send them in. Use blasters only, launchers won't work well here. Consider using range and fire rate upgrades.
Two green circles- There will appear "Random creeper diamonds" there, so take note and be ready when they appear. Don't let your units die so easily.
The Light green Xs- Side note, Don't attack those spots until you have killed all other creeper. Those Xs have more then 14 million Creeper, don't let your units attack it stupidly, you will just waste energy and time.
Don't worry about the the bottom capsule, that can't reached by creeper for more than an hour, you have plenty of time.
Hope this helped.
Ebon, one complaint, TOO MUCH CREEPER!!!
I liked those fields a lot though...
DON'T FORGET TO SAVE!!!!!
PS: Ebon, hope you aren't going to dislike this post, I just wanted to help some players. To make it up to you, you can go ahead and post all the secrets of my map if I ever make one.