these two are the most important parts when flashin and those two have to match! if you want to have latest firmware then i suggest:
W810_R4EA031_MAIN_GENERIC_HN_RED49
W810_R4ED001_FS_AMERICA_2_RED49
model_CDA102555_107_AMERICA_2

you must have all those three files in order to flash your phone and have the latest firmware!!! of course you can choose different firware. it's up to you. but i think that this one is the best as it's the latest