Yeah but you get the premium curreny by playing the game and doing missions. At least at the moment the requirements are pretty doable. I have played a bit over 4h and I have 250 of the 1000 required to unlock the premium warbond (which is also not time gated so you can take your time). Plus at least at the moment the weapons in the premium section are sidegrades at best and not straight upgrades over the weapons you get in the "free" warbond. Like even after I unlocked the premium warbonds im gonna invest in the "free" warbond first since the free weapons are more interesting.