Thing like SUPPRESSION - there is no info about that in game ( like DEBUFF, BUFF or use it like this or that, help in THIS or THAT etc. ) for me when i play now its just 3 colour bar and its doing NOTHING
Psykers Skills upgrades - there are upgrades but skills desc after change is not CLEAR ( no percentage or radical change of skill effect ) There is no different animation on upgraded skill, not even colour.
CD skills are not showed - like health "potion" when CD is active i need to put mouse arrow on it to check how long etc.
There is loots of DATA like Stats, strange way to unlock skills by the achieves, different types of shield ( void, energy ) , Void anomalies ( cool thing ) BUT nothing is explained and players need to guess or read on game guides ( many ppl dont like this ) and with anomalies created because of Psykers skills this is GREAT lore friendly idea BUT you need to tell more in game about that ( not everyone is 40k fan :p )
Skill points reset ( how can i reset skill points )
Mission progress - i played one week and until yesterday i didnt know that under my char window is small arrow that i need to click to go to NEXT CAMPAIGN MISSION :p i was doing randoms = this should be more clear and this arrow looks bad :/ better some nice 40k friendly button like skull or something
Hope this things will help