I'm not sure E:A lacks 'flavoursome armies'.... I mean the whole remit for the E:A ruleset was to create strongly themed armies based on particular regiments/chapters/craftworlds/generals/etc it's why we have umpteen different lists for every faction with (mostly) strong themes which encourage certain playstyles and tactics, as someone developing a list, I'm really trying to create a balance between preserving the overall theme of the Imperial Fists (stauch siege-defenders) while making it playable in a variety of different manners to suit varying opponents and tactics
I'm not sure of the updates of SM2/TL covered in NetEpic (and I'm sure there are so many it's barely recognisable) but what I like about E:A was the elegant way formations degrade taking prolonged shooting, how units become suppressed and can't fire, how this becomes a part of the tactics of the game, jockeying for position, trying to lay suppressing fire to stop AA units shooting your attack craft down. How formations mutually support each other in assaults, and how you have to carefully choose where you attack a formation to give you the best odds of beating it
I also like the army selection, being able to add upgrades to formation, like extra stands of infantry or tanks, or snipers or commanders, you can really make a customised unit, not to the silly degree of E40K, but you can fiddle with the formations in a really organic way
it's not perfect, nothing is, the air rules leave something to be desired, and the barrage table can be frustrating at times... but overall I think they knocked it out of the park with E:A by streamlining the SM2 rules a great deal with E40K, but bringing back a lot of the SM2 flavour, you get the best of both worlds IMO
