I'm very much new to the game, but I like running this set up in 3vs3. I play as Forge, and go for 3, high veterency tanks with wolverine support, so this is the build I use.
I've just tested it, so the times are correct.
SP, SP, SP
Collect crates (I collected 4 lots in this test)
Reactor, Reactor and Fortress
VD, VD
So Basically, a simple, double pump build.
Make three tanks. When the third is building, delete the other VD and replace with third reactor (or Barracks if going for a free reactor hook). This does mean you will have to wait for a few supplies, maybe 15 seconds or so which I know is a pain. I guess this can be remedied with more supplies gathered.
The Tanks should be out at 3:40, 4:10 and 4:35ish.
Once the third reactor is up, you will have the supplies for Canister, so que it and then delete the reactor.
Put up a Barracks, 3 Spartans and then Chain Gun.
You will have 3 Spartan Canister Chain Gun Tanks at just over 7 minutes, or quicker with Reactor hook.
Any good?
Like I said, I'm new so constructive criticism would be cool.