Voice attack and ASTRA voice pack.
Trust me, it's worth it.
Much as I love Voice Attack (its a godsend in VR), there are some quirks in the game, like the absence of binding for a docking request. Also, if you have an NPC in an SLF, his order will revert to Defend once his target is destroyed. This leads to to saying "Target Highest Threat" then "Fighter, my Target", (which he then acknowledges, every time) literally hundreds of times whilst in a Conflict Zone.