There are lots of changes in my opinion. More focus on crafting, making your own guns/buildings/meds etc.
I do really like the ability to make your own based (Although LB and I found some flaws there already) you can pick to spawn in your base too. Theres also the ability to spawn in safezone/group/proxy
Lb and I killed at least 12 pakkis last night, like OG's. Come feels!!The feels of this game were epic. LONG LIVE THE WARZ