Advanced Construction Kbot is a unit that opens the door to the T2 economy and high-level defensive structures. 

In most situations when you get one, start updating your:

1. T1 metal extractors to T2 Moho mines
2. Build Advanced geothermal powerplants
3. Build fusion reactors in combination with advanced metal makers. 

It has a higher buildpower than its T1 version and boosts your metal and energy storage by 100. On top of what its Kbot counterpart can build, the vehicle is also able to produce Advanced Fusions, the most powerful energy-making structure in the game.