ordering the factions from easiest to hardest (Neter)

Deep water guard: Dificulty lvl 1 Onyx watch: Dificulty lvl 2 White flayers: :/ haven't faced them yet comment wat lvl you think they are Lightning hoods: lvl 4-5 (depending if you use HEAT shells or not) twin gaurd: lvl 6 steel striders: haven't faced them either gray tallons: 9 SCARLET DAWN : OVER 9000 just kidding lvl 10