Supplies units can be seen as worthless in many situations. This sounds wrong to me. Do you mean to say "supply units are often unnecessary in many situations"? The term "worthless" implies that supply units not only aren't used in a situation, but that they also have no value at all, potential or ...

Elmo, I noticed playing that the "ambush" button lights up based on your unit's posture. For example, sometimes my units have to be in "passive" posture to attempt ambush. Other times, they can be in defensive, or other. Not sure why, but just try to use a different posture setting and see which one...