| Map | Title | Author | Players | |
|---|---|---|---|---|
| ONS-[HFM]-Archenton | ONS-BlackEagle | Darkmatter | 4 | |
| ONS-H2OhNo | H2 Oh No | Chaos_Snake | 8-24 | |
| ONS-Halloween | Halloween | el chico | 8-24 | |
| ONS-Halloween_1b | ONS-Halloween_1b | Francisco "el_chico" Nuñez. | 8-24 | |
| ONS-Halloween_nm | Halloween | el chico | 8-24 | |
| ONS-Heir | Heir | Hellkeeper | 18-32 | |
| ONS-Highland | Highland | [FC]Tyler | 12 | |
| ONS-Hight | Hight | C.Saville | 15-20 | |
| ONS-HoldingTank | Water Station: Surface Holding Tank | Travis 'Ein Stein' Draper | 4 | |
| ONS-Hollon2 | Hollon2 | ADES | 12-24 | |
| ONS-Hollon2 | Hollon2 | ADES | 12-24 | |
| ONS-Hollon2-SE | Hollon2-SE | ADES | 12-24 | |
| ONS-hoverships | its bumper cars! with flying pirate ships! | stickboybob | 3 | |
| ONS-Hustle-Beta9e | ONS-Hustle | Wulff | 12-32 | |
| ONS-Hyrule | Hyrule | Unknown | 16-32 |