Tried searching everywhere but I didn't really see any details as to whether we plebs that still have the base game will need to upgrade to see these items.
If anyone knows or if by luck a dev sees this to confirm/deny/speculate, thanks ahead of time!
100% sure that some weapons will be locked from base game owners as shield recharge lasers will be one of the thing we can get from engineers.
Those will be unavailable because they require an Engineer upgrade.
This topic is specifically referring to the standard, new Class 4 weapons.
My bet is that they will be available to everyone, as they can be bought anywhere, not just on a planet's surface.
I sure hope that's the case 777Driver, chances are if more positive details about engineers come out I will pick up Horizons either way. Personally, I just can't justify the price tag for what is currently available, but I also want to start familiarizing myself with it should the upcoming content be worth it, especially if it will gate the class 3/4 weapons behind it.