Obstruction nodes for tactical combat zone 4
8 obstruction nodes

TacWP 2		NavWPID 576		LEAN_LEFT
TacWP 6		NavWPID 564		LEAN_RIGHT
TacWP 7		NavWPID 565		LEAN_LEFT
TacWP 9		NavWPID 567		LEAN_RIGHT
TacWP 10	NavWPID 568		LEAN_LEFT
TacWP 23	NavWPID 570	LOW
TacWP 25	NavWPID 601	LOW	LEAN_RIGHT
TacWP 28	NavWPID 560	LOW	LEAN_LEFT