The Clan War Preference (I'm out/I'm in) is missing from the result of the "<tag>" API call (Jul 24th, 2018).
I think it is not a private data... but without this I cannot filter the appropriate members for the war (eg. if strong members are red).

And a little uncomformity:
"Versus Battles won" appears twice in the json: versusBattleWins and versusBattleWinCount
I suppose that the versusBattleWinCount is not needed (just change it to clanWarPreference ;-).