STO Foundry author Nagorak weighs in with his research about ship scaling for NPCs (non-player characters).
Using the STO Foundry, “I managed to determine the ship scaling for the Foundry ship groups up to five (5) players*. What I’ve discovered is that the NPC actors always remain the same type of ship, but which ships spawn varies depending on the number of players (and it’s not as simple as spawning in order of the actor list).”
“There is also some variation in hull strength (and maybe damage output) of the ships to further balance the groups. So, for example, one battleship may have more hull than another in that group or a different group. That difference in strength explains why there are some identical spawns with different actors. (For example, with the battleship group, you get a battleship and dreadnought both with 4 and 5 players, but the 5 player spawns are stronger.)”
“I believe the information is accurate, but I had to record a lot of different groups, so it’s not outside the realm of possibility that I made a mistake. If there is a mistake, then it will only be in the exact mix of ships at each player amount. The exact type of ship each actor is (which is the most important info) should be correct.”