Interesting idea Logan. But tough finding a country the size of France with one dominant biome.
My first thought was an independent British Columbia (which is roughly the size of France) ... but BC has too many distinct biomes for one camo scheme.
Then, Tanzania came to mind as a country where one scheme might be able to cover most of the land mass. So, I'll fudge on the 'fictitious country' and make mine Tanganyika. That what-if part being that the union with Zanzibar never happened
Your four categories I've broken down as follows:
Tanganyika Defence Force/Air Wing : Combat, trainers, and larger transport aircraft;
Tanganyika Defence Force/Land Force : Smaller transport aircraft and scout helicopters;
Tanganyika Defence Force/Coastal Force Aircraft : Patrol and maritime SAR aircraft; and
Tanganyika Defence Force/para-militaries : Patrol and medevac aircraft
The military units were formed with the assistance of a West German aid mission. The para-militaries consist of the Border Patrol (part of Tanganyika Customs) and the Police Field Force. Two PFF units operated aircraft - the Police Air Wing and the Police Marine Unit. All para-military flying units come under the jurisdiction of the TDF (although their aircraft are owned by Tanganyika Civil Aviation Authority).
Markings consist of roundels formed from the Tanganyikan coat of arms in six positions plus Tanganyikan flags on the tail. Roundels are outlines rendered in flat black and tail flags are quite small. The para-militaries have full-colour roundels and larger tail flags.
The standardized paint schemes date from after German unification and are based on donated ex-DDR NVA/LSK paint stocks. Although the NVA/LSK never had a standard
farbschema, the Tanganyikan 'combat' schemes are based on the relatively common NVA/LSK three-tone camouflage pattern of
Gelbbraun,
Grün, and
Dunkelgrün over
Hellblau.
In the Tanganyikan scheme, a custom-mixed desert tan takes the place of (or overpaints)
Dunkelgrün. This custom tan was achieved by mixing ex-NVA
Gelbbraun and
Weiß to give the desired colour. 'Non-combat' schemes re-use paints from the NVA Volksmarine's
Weiss/Dunkelblau scheme.
Standardized schemes are broken down by branch:
TDF/AW : Three-tone Mid-green/tan/brown upper surfaces, pale blue lower surfaces
TDF/LF : As per TDF/AW but with a greater proportion of tan and some brown dappling over mid-green portions.
(Land Force armour camouflage is essentially the same but with proportionately smaller patches of medium green-only dapple and small, matt-black vehicle number, divisional insignia, no flags applied.)
TDF/CF : All-over medium grey (
Grau). Individual aircraft numbers (originally in white) are now black.
Para-Military: Upper surfaces gloss white, lower surfaces gloss dark blue.
(Para-Military Forces' vehicles have a similar white/blue scheme except for tactical vehicles which employ the Army brown/green scheme but with the additional of full-colour flag insignia. Small, full-colour Customs or PFF crests replace Army divisional insignia.)
An order of battle for Tanganyikan Defence Force aircraft c.1995 is available if of interest.