A number of ten-man units in the Dark Angels army have the option of breaking down into two five-man units. The units that can be split into Combat squads are: + Veteran Assault Squads + Scout Squads + Tactical Squads + Assault Squads + Devastator Squads The decision to split the unit into Combat squads, as well as which models go into each squad, must be made when the unit is deployed. Both Combat squads must be deployed at the same time, but may be deployed in separate locations. If you decide to break the unit down then each Combat squad is treated as a separate unit for all game purposes from that point, and counts as a scoring unit if it still has half or more of its starting models, etc. Units held in reserve cannot be split into combat squads and vice versa. For victory point purposes, each Combat squad is worth a number of victory points equal to half of the points value of the unit.
Space Marines automatically pass Morale tests to regroup, and can take such tests even if the squad has been reduced to less than 50% by casualties, though all other criteria apply. If Space Marines are caught by a sweeping advance, they are not destroyed and will instead continue to fight normally. If this happens, then the unit is subject to the No Retreat! rule in this round of close combat and may therefore lose additional casualties if outnumbered. Usually troops that regroup may not move normally and always count as moving whether they do or not, but these restrictions do not apply to models with this special rule. Units that include Servitors and Familiars are still subject to this rule as long as the unit contains at least one Space Marine. Space Marines are still subject to Last Man Standing tests. They will always regroup after each Fall Back move to 'reassess' the situation however.
