Note: This procedure requires editing a game file; creating a backup copy of the file before proceeding is recommended. Locate the "game.pak" in game folder and use WinRar or a similar program to open it. Extract the "lod.reg" file in the "Registry" folder to the Desktop. Use a text editor to edit the "lod.reg" file as follows :
On any level where your number of soldiers depends on how well you did on the previous mission (for example, if you have three men and one dies, then on the next mission you would have two men), and you wish to obtain more men, try to kill your own men. Then, restart the mission. You will acquire the maximum amount of soldiers that the level is allowed to have.