Trying to find how to give a infantry more than one capability...
from the unofficial manual:
At the top-right of the window is the Capability section. One or more Capabilities can be selected for the
Unit Class. The Boarding Combat capability is required for a Unit to be able to board another ship. For all
other capabilities, the Chance to Hit is doubled in the environment specified. If a unit has multiple capabilities,
such as Mountain Warfare and Jungle Warfare on a world with a dominant terrain of Jungle Mountain, the
bonus is cumulative (i.e. 4x to-hit in this case). Each capability selected for a Unit will increase the cost by the
multiple specified. Some capabilities are only available for infantry units.
