Initiative: When combat begins I will roll initiative for all combatants including PC's. Actions will be resolved in order. Players are free to wait their turn or post ahead of time (including options if they'd like). If a player has posted before their initiative and things change before their actual initiative comes up, they are free to change their action with a new post.
Cover: Soft cover applies for ranged attacks. Cover is calculated drawing a line from one corner of your square to all 4 corners of the defender's square without passing through any objects/people.
Hard corners: Provide cover and cannot be bypassed with a 5' step.
Attack modifiers: PC's should modify their die rolls as appropriate for cover, shooting into melee, flanking, attacking from prone, etc. While being prone is technically an AC modifier, feel free to calculate it in as long as you advise me.
Format for posts:
-Round and initiative (i.e. Round 1, Init 15)
-spoiler things that would scroll long. I trust and expect that people will not use out of character information they shouldn't.
Dice rolling: Dice rolling is done via the message board dice roller (see BBCode tags below the text box when you post. Feel free to roll dice for a skill, attack, etc, anytime you think is appropriate. I appreciate it if you explain any situational modifiers that alter what the roll would be from your profile. Including at least situational modifiers keeps things like cover from being counted twice or not at all. I go overboard, but understand if it's too much for everyone. For example:
+1 BAB, +4 Dex, +1 Point Blank, -4 cover
Aside from initiative, I will typically not make rolls for you unless it is necessary to keep things moving. I will also frequently let you make rolls that are supposed to be done by the GM. I trust people to not metagame around it and find it helps with my sense of immersion. If you're the opposite and knowing you rolled a 1 is going to distract you on searches, traps, etc, just let me know.
End of turn: Once you post and your initiative comes up, your turn is done. A friend of mine says, "I play the villians perfectly and I expect you to play your characters perfectly." While I can promise you that I will NOT play the villains perfectly every time, I do expect to play out whatever errors I might make once my turn is done. I expect that players will do the same.