For example, Player A has won initiative the last two turns and rolls a 18, giving him a modified score of 8. Player B rolls an 8 equaling Player A's modified score. Both players must roll again. Player B wins initiative for the round and next turn gets a -5 modifier to his initiative roll. Setup Terrain is setup up first.
Available terrain is placed into similar sized bunches.
The side that goes first takes a bunch and places it anywhere on the table. Then the other side does the same. Both sides alternate doing this until all terrain is placed. Then each side rolls a d20 and the highest roller picks the side he wants. Then the side that goes first places its units upon the table according to its plan and then the other side places it's units upon the table according to its plan.