Next to already revealed an known https://community.bistudio.com/wiki/Category:Arma_3:_New_Scripting_Commands_List
There are more script commands now :)
+ fixed http://feedback.arma3.com/view.php?id=12324
+
only discussion related to new or changed Arma 3 Beta/Dev Scripting allowed
The load(Abs) commands seem to be broken. They count loaded magazines twice. Extreme example:
// getUnitLoadout player
// loadAbs player
// no PCML missile
[[],["launch_NLAW_F","","","",[],[],""],[],[],[],["B_AssaultPack_rgr_LAT",[]],"","",[],["","","","","",""]]
120
// 1 PCML missile in backpack
[[],["launch_NLAW_F","","","",[],[],""],[],[],[],["B_AssaultPack_rgr_LAT",[["NLAW_F",1,1]]],"","",[],["","","","","",""]]
200
// 1 loaded PCML missile
[[],["launch_NLAW_F","","","",["NLAW_F",1],[],""],[],[],[],["B_AssaultPack_rgr_LAT",[]],"","",[],["","","","","",""]]
280