The TypeSqf editor is a developer tool for Arma SQF scripting. Besides using it to write SQF code with syntax highlighting and auto completion, it analyzes your syntax in real time, alerting you if something is erroneous or suspicious.
The editor comes with optional extended functionality for SQF syntax, called SQX syntax. It gives the developer the possibility to write the code in .sqx files, and provides type handling and enables object oriented scripting with classes. Classes may contain a constructor, fields, properties and methods. .sqx files are compiled into corresponding .sqf files before executed by Arma 3.
The CPack Service is a service for sharing content between script editors as well as to organize a developer's own code. It allows you to share (upload) bundles of script files forming a logical unit as an addon, labelling it with a name and a version number, and they are then very easy to include (download) in any mission.