Here is a basic tech tree for ya guys.
Commander->lvl 1 Kbot lab, Vehicle plant, Aircraft plant, shipyard
Lvl 1->Kbot lab->Construction kbot->Lvl2 Kbot lab->Lvl 2 Construction kbot->Lvl 3 Mech gantry(builds most powerful units in the game(details bellow)
Core: Krogoth(MASSIVE firepower, can crush small units+tanks but walking over them, 133700 health),Juggernaut(has 400000 HP, very hard to stop, low firepower), karganiths(low firepower+health, all terrain),Rocket mech(fires huge volley of high power missiles, extremely low health, takes long time to build).
Arm: Bantha(1/2 health and firepower of krogoth,1/2 cost/build speed),Razorback(arm equivalent of karganith, not all terain, low firepower, good against infantry and lvl1 vehicles), Vanguard(all terrain heavy artillery, excellent for assaulting bases from long range).
Both arm and core have amphibious siege mechs(can travel underwater but are vulnerable to submarines, good for sneak attacks on maps with water)
Lvl 1->Vehicle plant->lvl 1 Construction V.->Lvl 2 Vehicle plant->Lvl 2 Construction V.->Advanced Fusion reactor(3x power of normal fusion reactor)
Lvl 1->Aircraft plant->lvl 1 Construction Aircraft->Lvl 2 Aircraft plant->Lvl 2 Construction aircraft->Seaplane platform(can only be built at sea, planes can land on water, more powerful then standard planes)
Lvl 1->Shipyard->Construction ship->Lvl 2 Shipyard->Lvl 2 Construction submarine->Seaplane platform (can only be built at sea, planes can land on water, more powerful then standard planes)
This is just for factories that can only be built by certain units. All lvl2 builder units can build the standard lvl 2 structures(exception of lvl 2 construction submarine which builds the underwater/surface equivalent of most lvl 2 ground buildings)
