So... what does any of it do?
Hullmods especially, since ships fly and weapons go pew, but hullmods could do anything.
Mister, it do well, something...
1. First off all this is pack of vanilla-friendly, decent visual and fine balanced hulls. Some of them gives you really unique experience. From excelsior to cathedral. - enjoy them all. Also, those ships fitted into factions almost perfectly.
2. Couple of useful weapons and fighters. All vanilla-balanced. They not OP, but fill the niche empty in vanilla, so you probably would find them suit to your ships.
3. There are only three non-built-in hullmods, and they are no life changers. One increase projectiles speed and target leading, second gives you extra OP for constant risk of malfunctions, third gives you huge bonus to dissipation, but removes shield permanently.
4. Mod add IBB - custom bounty system. Mostly this is the way to obtain unique hulls if you manage to defeat them. Some of them are really fun to pilot.