It must be a mistake... (LRM upkeep)
LRM less upkeep than light frigate (TEC)?
I was just checking a few entity files (reference data for Entrenchement) and just noticed something that should not be... The LRM frigate, while it cost more than the light one, cost less slot points, meaning you can field more LRM than light frigates. I'm not sure but since long range units have such an advantage in combat, especially against light frigate, i don't know why they cost less fleet slots (and they are spammed heavily by players). It's seem to be the same for the Advent, but the other way around for the Vasari. I'm not sure, but it seem like a mistake...