The usual click and shoot routine is effective, but to get the alien target a certain painful load of hot metal, or laser.
Set the check mark on the left hand side, it looks like a shield with a check mark when set, and then set it again, it will display two check marks under a shield. Then kneel your soldier. Should give him a bit more protection, and a titch more accuracy.
As the aliens start their turn, they notice the human, fire, and are fired upon. very effective when you can get two... or of you aggressive on the field... three humans.... holding ground, as the alien makes a move all three of the Phalanx team members fire a shot.. or two. They cant clear as much map space as quickly this way, but it does prove very effective in sweeping the aliens off the map. Just like in the old X-com. ... /sniff.... brings back memories...
Respectfully,
H0Z3R