Tying into the changing technologies bit, I looked at the three systems I had conveniently at hand (CT High Guard 2, MT, and MgT1) and noted what Tech Level each weapon is available at. CT and MT are essentially the same - MT has a "particle turret" one TL earlier than CT, but it's a super-heavy turret that's effectively the Particle Barbette from CT, which was available one TL earlier. Mongoose, by comparison, has earlier missiles, meson guns, and particle weapons, and later beam lasers and plasma turrets. Mongoose also gets rid of some weapons (fusion turrets, repulsors, plasma bays) while adding new ones that aren't on this list (torpedoes, rail guns, 100-ton fusion bays). A couple of these changes I agree with (the 50-ton missile bay being 3 TLs higher than both the turret and 100-ton bay was weird, and the PLaser before the BLaser makes sense). Others I don't (particle turrets at TL8 and meson weapons at TL11?). I figured I'd just note the changes ahead of looking at anything from the Mongoose era (or doing any conversions to that system).
| Lowest TL | CT (HG2) | MgT1 |
| Missile Turret | 7 | 6 |
| Sandcaster Turret | 7 | 7 |
| Pulse Laser Turret | 7 | 7 |
| Beam Laser Turret | 7 | 9 |
| Plasma Gun Turret | 10 | 11 |
| Fusion Gun Turret | 12 | Not Available |
| Particle Accelerator Turret | 15 | 8 |
| Particle Accelerator Barbette | 14 | 8 |
| Meson Bay (100 ton) | 13 | 11 |
| Particle Bay (100 ton) | 8 | 8 |
| Repulsor Bay (100 ton) | 10 | Not Available |
| Missile Bay (100 ton) | 7 | 6 |
| Meson Bay (50 tons) | 15 | 11 |
| Particle Bay (50 tons) | 10 | 8 |
| Repulsor Bay (50 tons) | 14 | Not Available |
| Missile Bay (50 tons) | 10 | 6 |
| Plasma Bay (50 tons) | 10 | Not Available |
| Fusion Bay (50 tons) | 12 | 12 |
| Particle Accelerator (Spinal) | 8 | 8 |
| Meson Gun (Spinal) | 11 | 11 |