Editing Warhammer 40,000/7th Edition Tactics/Space Marines (section)

===Combat Doctrines===
Now made universal, certain units and formations/detachments can now grant uses of the Doctrines, regardless of chapter, instead of only being an Ultras thing. The most common method for ''non''-Ultramarines Chapter Tactics to get uses of Doctrines is by taking a Gladius Strike Force detachment (see Formations section), which grants one use of each of the three Doctrine types. If an army has multiple rules that enable a particular Doctrine, that Doctrine can be enacted that number of times per game (e.g. an Ultramarines Battle Demi-Company with Calgar would be able to use the Tactical Doctrine up to four times per game; one use granted by their Chapter Tactics, one use granted by being part of a Gladius Strike Force, one use granted by being a Battle Demi-Company, and Calgar granting one extra use of any Doctrine).
There are three Doctrine types, and when enacted, each of them grants the following benefits to all units in your army with the same Chapter Tactics as the detachment that enacts it, till the start of your next turn:
* Tactical: Re-roll 1s to hit for shooting and assault. Tactical Marines, and any ICs joining them, can re-roll all misses that turn.
* Assault: Re-roll 1s to-hit in the Assault phase (so both Overwatch and close combat). Assault Marines, Bikes, Attack Bikes and AssCenturions, including any ICs joining those squads, can re-roll all misses during that Assault phase.
* Devastator: Re-roll 1s to-hit in the Shooting phase. Devastators and DevCenturions, including any ICs joining those squads, can re-roll all misses during that Shooting phase.