| Feature No. (Unit) | Feature No. (Unit) | |
| Feature 1 (Unit E, Level 2) 9150/2478 | links: | Feature 1 (Unit G, Level A) 9150/3132 |
| Feature 1 (Unit G, Level A) 9150/3111 | links: | Feature 1 (Unit I, Level 1) 9150/3283 |
| Feature 1 (Unit E, Level 4) 9150/2560, 2571, 2610, and 2606, 2607 | links: | Feature 3 (Unit B, Level 2) 9150/1729 |
| Feature 1 (Unit E, Level 4) 9150/2571 | links: | Feature 4 (Unit C, Level 3) 9150/1484 |
| Feature 13 (Unit O, Level A) 9150/3978, 3995-97 | links: | Feature 14 (Unit O, Level A) 9150/3986-1 |