I'm unable to spawn gear into a seachest

I'm able to spawn a sea chest, but my goal is to spawn a chest with loot. for some reason I'm not able to to do that -

Here is code that I was using for the gear

<type name="SeaChest">

<cargo chance="1.00">

<type name="M4_Suppressor" />

</cargo>

<cargo chance="1.00">

<type name="M4A1" />

</cargo>

<cargo chance="1.00">

<type name="Mag_CMAG_40Rnd" />

</cargo>

<hoarder />

thank you

I'm still seeing my seachest missing the loot.

is the cfgspawnabletypes the only file that indicates spawnable gear?

I was <type> instead of <item>

I think that was my mistake