J.A.C.K. achievements

Get an "Invalid solid structure" error.

Extract textures (Quake or Half-Life).

Place 1000 point entities.

Export 100 MAP files.

Split 50 faces.

Create a path using the Path Tool.

Create a group consisted of 10 nested groups.

Place 50 decals (Half-Life).

Create an effect in Effects Editor (Quake 3).

Create 2500 solid entities.

Save 25 incremental versions of a single project.

Make 25 solids hollow.