dod_control_point for the flags, this is a point entity. Requires dod_capture_area or dod_bomb_target to properly capture. These also require Unique IDs (its a field under its properties) to work correctly. Multiple capture areas with the same Unique ID will cause your map to fail during game play and not work as expected.
dod_control_point_master is a point entity. Your map will require one and only one of these.
dod_capture_area for the capture zone, this is a brush based entity. So make a brush with the trigger texture, tie to entity (Ctrl + T) then go to list and select dod_capture_area and press apply. You have to set this capture zone to the respective dod_control_point.
dod_bomb_target, this is a point entity. You set the Target CP field to the respective dod_capture_area.
dod_bomb_dispenser for the bomb dispenser, this is a brush based entity. So make a brush with the trigger texture, tie to entity (Ctrl + T) then go to list and select dod_bomb_dispenser and press apply.