I’ve noticed some of my soldiers occasionally have a green ^ or a red ^ (upside down) next to their cover icon.
What is the meaning of this?
These indicate stat penalties and bonuses. For example, if a unit is suppressed, it gets a -30 aim penalty. This unit will then have a red downward arrow next to the shield to indicate it has a stat penalty.
Source : Link , Question Author : Drew , Answer Author : SaintWacko