Due to many questions, I have decided to just give you the amount of enemies you might encounter if the scout report is not detailed.
Few = 1 – 24
Pack = 25 – 49
Lots = 50 – 99
Horde = 100 – 249
Throng = 250 – 499
Swarm = 500 – 999
Zounds = 1,000 – 2,499
Legion = 2,500 – 4,999
Bulk = 5,000 – 10,000
Giga = 10,000 – “Infinite”