Lets go with A,B,C and also V/U
Class Time (get it)
An easy way to explain the Classes in general + help someone figure out which one they want to join, is a mindmap: based on everything that makes up an operation, how does one want to contribute?
Most of them focus on a specific niche, but they collab with each other a lot since the others can do what they can't etc.
A: Class Aegis focuses on not only being tanks in a fight but also structural defence, construction and architecture. Want anything to be fortified just ask them.
B: Class Break are the kids who joined Robotics Club in high school to make lego trucks move, and now they can not only build cranes and planes, but also war machines. Anyone with an interest in that type of engineering goes into Break. They collab with Lockdown members for programming assistance often.
C: Class Cloak's members are all snipers that use different rifles, you got the standard anti-personnel, anti-armoured vehicles, PSI-penetrating etc. They are a unit in terms of people studying the same course, but work solo most of the time. Their members are often split into other teams when a mission is assigned.
V: Class Victory manages logistics which is often overlooked, plus try and morale high. Skirn manages this class, which is a detail I enjoy bc V and W are next to each other in the alphabet (him and Fu yay)
U: Class Umbra is composed of Seers that are trained offensively instead of defensively like Class Eclipse are. While Class E's Seers are trained to predict the future as accurately as possible to cater for damage mitigation strategies, Umbra's Seers not only See the future but are able to trace and enter the vision briefly to change things and twist them in their favour. Technically it's illegal for Seers to do so, but the government permits it for them.