[Imp]

Given this a bit of thought

Firstly your HQ should get some fortifications at the start with the option to spend some R&R on later to buy more if so wish.

HQ should perhaps be 4 or 5 men for survivability perhaps armed with SMGs in slot 1 rifles if any in slot 2

Map size 40x40 if only have 3 or 4 units is a lot to cover perhaps increase gang start size.

Scouts could restrict purchase of but give a secondary role. For each scout you have on a map it can check one adjacent map to see if clear.
As in at end of battle says checking map to North you say if empty or contains hostiles, means keeping them alive is a good thing & could possibly role a dice for result. Say 1-4 correct intel 5 failed 6 incorrect intel.

Map if build one large 145x145 map & split as follows
Each map contains a 5 hex border it shares with other maps for continuity

For balancing a player could recieve less R&R points the further he gets from his turf as harder to pick up ammo recruit people. Say HQ 100% but -20% for each map away from