The most important initalizations

In this picture we see how you equip weapons to units and ammo crates.
You can rename the "M16" with other variables, for example:

AK47
LAWLaucher
M16GL
BIZON
G36 etc..

Note: At some magazines (mostly pistols) you must add "Mag", for example: "GlockMag"
Equiping to units is only the omission of the phrase "cargo" ;)

Just type the initalizations in the right field. Don't forget to name the vehicle! Otherwise this won't work
You can also place the units via Trigger. In this case it's important to give the unit a name, too.
For example: player1 moveindriver t55

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Random initializations you better know ;)