Blast Zone accomplishes map rigging by using special combinations of tags and attributes. Most props are rigged by placing tags on specific parts and models, then configuring the behaviors of those instances by setting attributes.
Blast Zone makes use of many custom-made tags, each of which corresponds a specific behavior in-game. A full list of tags is available on this website, with examples on how to use each one. The MapKit model also includes a number of pre-configured props that are ready for you to use.
Blast Zone looks for certain attributes that correspond to each tag. You can edit these attributes in Studio in the properties window. Note that if your attribute is of the wrong type (e.g. using a number when a string should be used), the scripts will ignore the value you set and use a pre-configured default value.