18mm and 28mm figures and scenery
The number and type of model soldiers you already have, or are prepared to obtain, will determine how you will plan your wargame system.
Having decided what you want to achieve you must now list what figures you have available to achieve it.
6x6 foot wargames table
Again I will use what I did to illustrate what I mean.
First I made a list of what figures I had available. I found that I had 1296 infantry, 120 cavalry, 26 guns manned by 104 gunners. And of course they are duplicated in 28mm, 18mm and 6mm.
I have a comprehensive collection which represents most of the armies of the Napoleonic Wars. The infantry were organised in units of 36, the cavalry in units of 8 and the artillery one gun and 4 crew.
The breakdown of figures by nationality and numbers was as follows
French 288 infantry 32 cavalry 6 guns 24 gunners
Austrian 144 infantry 16 cavalry 4 guns 16 gunners
British 144 infantry 16 cavalry 4 guns 16 gunners
Prussian 144 infantry 16 cavalry 4 guns 16 gunners
Russian 144 infantry 16 cavalry 4 guns 16 gunners
Spanish 144 infantry 8 cavalry 4 guns 16 gunners
Bavarian 108 infantry 8 cavalry
Polish 72 infantry 8 cavalry
Baden 36 infantry
Italian 36 infantry
Westphalian 36 infantry
28mm battle of Talavera
The good news was that the ratio of cavalry to infantry was reasonable at roughly 1 cavalry to 10 infantry.
The main problem was that they were organised and painted as 36 figure infantry battalions and 8 figure cavalry squadrons.