M3+, also known as Heavy Fighters, or more rarely, armed transporters, are a ship class added in X3: Reunion, in Patch 2.0. Initially restricted to a few races, it was further expanded in later games. Many of these ships were developed by the Boron shipwright Bala Gi.
The earliest M3+ seen other than the X was the Paranid Perseus, which succeeded the aging Prometheus as the main Paranid fighter.
The X-Shuttle is also retroactively considered an M3+ ship, due to its immense capabilities.
- M3+ (X3)
- Heavy Fighters (X4)
| X: Beyond the Frontier | X-Tension | X2: The Threat | X3: Reunion | X3: Terran Conflict | X3: Albion Prelude | X3: Farnham's Legacy | X Rebirth | X4: Foundations | |
|---|---|---|---|---|---|---|---|---|---|
| Race | Name | Name | Name | Name | Name | Name | Name | Name | Name |
| Argon | N/A | N/A | N/A | Eclipse | Eclipse, Aamon Prototype | Eclipse, Aamon Prototype | Eclipse, Aamon Prototype | N/A | Eclipse, Pulsar, Yasur |
| Argon (OTAS) | N/A | N/A | N/A | N/A | Notus | Notus | Notus | N/A | N/A |
| Argon (PMC) | N/A | N/A | N/A | N/A | N/A | N/A | N/A | Golem | Golem (Unused) |
| Boron | N/A | N/A | N/A | N/A | Skate | Skate | Skate | N/A | Barracuda |
| Paranid | N/A | Perseus | N/A | Medusa | Medusa | Medusa | Medusa | N/A | Ares |
| Split | N/A | N/A | N/A | Chimera | Chimera | Chimera | Chimera | N/A | Chimera, Balaur |
| Teladi | N/A | N/A | N/A | N/A | Kea | Kea | Kea | N/A | N/A |
| Terran | Xperimental Shuttle | Xperimental Shuttle | Xperimental Shuttle (Unused) | Xperimental Shuttle (Unused) | Cutlass, Xperimental Shuttle | Cutlass, Xperimental Shuttle | Cutlass, Xperimental Shuttle | N/A | Gladius, Xperimental Shuttle |
| ATF | N/A | N/A | N/A | N/A | Fenrir | Fenrir | Fenrir | N/A | N/A |
| Pirates | N/A | N/A | N/A | N/A | Blastclaw | Blastclaw | Blastclaw | N/A | Shih |
| Yaki | N/A | N/A | N/A | N/A | Tenjin | Tenjin | Tenjin | N/A | Moreya |
| Xenon | N/A | N/A | N/A | LX | LX | LX | LX | N/A | F |