Defined HQ-Only Starts for Each Team

In the possibility of designing unique HQ actors for each team, this
should set it up so each team gets their own HQ vehicle and structure.
instead of having them commonly share the same actors.
Changed Support Starts for Each Team and Created New Units

Each team now has replaced the E1/E3 default actors to the mod's own
Trooper designs.

Jocks and Nerds now have unique infantry, the Linebacker and Laser
Warrior.
Overhaul

Instead of making separate structures for the functionally-same tasks,
most structures are consolidated. The HQ-Only starting setting reflects
this now too. Now, structures carry tech prerequisites unique to each
team.

Air and Water units are now included, along with additional infantry
such as the Medic and Mechanic for all teams, and the Pitcher for the
Jocks.

There is now an experimental "Chess Mode", where players start with a
small amount of forces and a special "Chess Tank", which must not be
destroyed. It is strongly suggested to play this on very small maps.