New game, new revision of my
ground doctrine.
The basic garrison regiment is mostly the same... a bit lighter on logistics infantry:
Planetary Defense Regiment (5000 tons)
Regiment HQ (Static-HQ5000, AR 3)
615 Infantry Troopers (Inf-PW, AR 1)
58 Anti-Tank Troopers (Inf-LAV, AR 1)
30 Supply Cache (Inf-LOG-S, AR 1)
11 Anti-Tank Gun (Static-HAV, AR 1)
If I have the math right, I believe that gives the regiment intrinsic supply for 10 days of combat. Having mostly done peaceful buildup so far, I have no idea if that's high or low, but it seems like a decent ballpark.
I merged the Brigade command and STO weapons into one formation:
Planetary Defense Brigade (5000 tons)
Brigade HQ (Static-HQ25000, AR 3)
Siege Laser Emplacement (Static-20cm Laser, AR 1)
5 Orbital Laser Emplacement (Static-10cm Laser, AR 1)
5 Construction Truck (Vehicle-CONx2, AR 2)
74 Mortar Troopers (Inf-LB, AR 1)
10 Supply Cache (Inf-LOG-S, AR 1)
Subordinate Formations: 4 Planetary Defense Regiments
That solves my main concern, that having a regiment dedicated to STO weapons was just too extravagant (now instead of the STO guns costing more than twice as much as the rest of the brigade combined, it's "only" as much as the rest), not to mention cumbersome when it came to setting field positions. Plus, it gives me a convenient 25,000 ton formation I can drop on any given planet and have a decent versatile defense against minor attacks, or I can drop several to really fortify an important colony.
OTOH it means the expensive STO weapons are going to be in the support position instead of rear echelon - I'm not sure how I feel about that, since it increases the chance of losing them in ground combat. I could replace the light bombardment units with heavy/long range bombardment and make the whole formation rear echelon, but that would be less efficient (also I don't have those techs yet). Alternately, I could assume that once the enemy has landed the STO weapons have probably served their purpose anyways. Also I have to admit the idea of the enemy landing ground forces to deal with STO weapons is all sorts of thematic.