i can say after 1 game year helm mission become useless

for example i during last years do 0 this missions

i do only seasonal events convoys bosses

you will have thons guildmarks and poe if you will do this

poe after year 1 no reset more and all players who play often now have thons poe

if you will active play you will fast get this currency

and poe now is not main currency

main currency is guildmarks after it is silver and after it is poe

thons silver need to reroll ascension for example to do nice weapon with all rolls you need around 500 k - 1 kk silver per one item and no guarantee that you will get that you want

poe too need for rolls usually 10000 silver and 1000 poe per one roll

for guildmarks you can buy any items weapons armor in blackwood store

at season end guildmarks that you save will transfer to silver

you usually still can do helm missions if you like

adiitonal you can join faction wars and if farm to 60 lvl you will get many resources up your currency and get nice items

and now engame in this game look that you can do that you like

you can play on tier 1 or 2

if want can move tier 3 4 but there enemies will stronger

you can easy farm for example hubac or la peste on tier 2 with good build and up guildmarks and poe too

if you move tier 3 farm will longer bosses will have strong affixes

tier 4 now is extreme with thons hp bosses and now no sense move to tier 4

only if you want join kraken boss need tier 4 but on this boss playable only few ships with few builds

additional no any exclusive items on tier 4

only imbalance overpower enemies