FS1 tech -
GTF Apollo: Still used as a raining craft (and punishment craft). Thrown into combat only in the direst situations.
GTB Athena: "Wild Weasel" craft, e.g. destroys AAA and flak turrets before heavy bombers arrive. Upgrade kits released by Dynamic Metamer during Reconstruction give this ship increased maneuverability, shielding, and payload capacity.
GTF Valkyrie: Standard interceptor. The Perseus hasn't even been invented yet and won't be until the main FS2 campaign begins.
GVF Anubis: See Apollo, except add "kamikaze".
GVB Amun: Still an effective heavy bomber. With two Banshee turrets it's a pain to attack, also.
GVFr Bast: Still easy to kill. If you don't remember, it's the Vasudan Poseidon minus turrets.
Avenger: Still in use. If you examine the table stats it's surprisingly powerful in relation to FS2 weapons. Early in the weapon, it's the most numerous and popular NTF weapon.
Banshee: Also still in use by the NTF in the beginning. Even now quite powerful.
Shield Breaker: Relatively rare. You won't see this weapon much.
Disruptor, Adv. Disruptor: What, you though the NTF was going to use a Vasudan Akheton SDG?
ML-16: Purely in the game for fun. Only use it if you want to, we're not going to force you to..I think :devilidea:
Interceptor: The only real difference between the Interceptor and the Harpoon is that the Interceptor is slightly bulkier and does less damage.
Fury: Fury's in there too. Not quite as effective as the Tempest but you make do with what you have.
MX-50: Still in there, although quite rare. You'll usually see a large quantity of these alongside about half as many Rockeyes in the Team Loadout screen.
Phoenix V: The Trebutchet hasn't even been invented yet - the GTVA forces will use these too.
Tsunami and Harbinger: Still far more of these in supply in the backwater worlds of Polaris, Sirius and Regulus than Cyclops or Helios.