1-Open the editor
2-Create your own team
3-Put enemies nearby
4-Move in formation
I fear there are more problems with your team in Stealth\Danger fight mode.
For example, medics during a firefight are the most useless men in the world since they are almost never going to heal your men (and often they pass in front of your shooting weapon).
Moreover it would be useful if, when ordered to get healed by a medic, the injured man would try hiding behind a cover, so that they would be safe.