Inf was my second problem and not related to first post. I try to explain what i meant. Narrow forrest road, engage route for pc platoons with column formation and slow speed. I made dismount if rule (unit this is carrying troops and unit this is under direct fire) and mount if rule (unit this is not carrying troops and unit is not under direct fire, after true delay by 1 min). At first contact troops go out and start engage, just like i wanted. When contact is broken pc's will continue but troops crawl on road to next or sometimes to previous waypoint. All other platoons behind that will get stuck to own soldiers.