OCOKA
Obstacles- Is anything in my way?, obstacles related to season, unexploded ordnance, natural and manmade obstacles
Cover and Concealment- Is there any in this approach to keep my men safe?
Observation and Field of Fire- Is there a clear path for seeing ahead so that I may fire upon it with Direct Fire?
Key Terrain- (any terrain that will tilt the battle), Main Supply Routes, choke points, bases, high ground, corridors can be unrestricted, restricted, or severly restricted
1) What troops are available?
2) How much time is available?
3) How do civilians affect the operation?
Avenues of Approach- Offensive and Defensive considerations, Mobility corridors, Drop Zones