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

===Come the Apocalypse===
*'''Necrons''': They're the anvil. You're the hammer. Let the undead robots take the shit, because they can handle it. You can deep strike later to win the day. Also useful when there are many high-armor (13+) vehicles in the field.

*'''Orks''': Use them as a first and expendable wave to tarpit and soften the enemy or silence their biggest cannons by assaulting them (or both), so you can later choose better your attacks. Remember that you have to begin the marine offensive when every one of the orks are dead, as the "one eye open" rule can ruin even the best plan.

*'''Chaos Daemons'''- Grey Knights are better.  Worth noting that daemons are here if you choose to summon them.

*'''Chaos Space Marines'''- Why? There's nothing they can do that you or a BB ally couldn't do better.

*'''Tyranids'''- Genestealers. Nuff said.