To give yourself an extra boost in 7th Legion, look at the file called missions.ini in your \data directory. At the bottom of each mission profile you see a header called PVSTART. That's your starting vehicles. Each number there represents how many of a certain unit you will start with. Be careful when editing this - sometimes (usually with machine gunners, as far as I can tell), your map will load and a fair chunk of your force will blow up.
Here are a few of the unit places (each number listed represents which number 0 on the list, from left to right. You should have something like 44 numbers there, but don't quote me on that):
| Location | Unit Type |
| 1 | Ore Carrier |
| 2 | Ore Truck |
| 3 | Crusader |
| 4 | Oppressor |
| 5 | Crucifier |
| 6 | APC |
| 7 | Faith Hammer |
| 8 | Annihilator |
| 9 | Purifier |
| 17 | Mortar Unit |
| 18 | Priest |
| 19 | Medic |
| 20 | Slaven Rider |
| 34 | Inquisitor AC |
| 35 | Revelator AC |
| 37 | Nova AC |
| 39 | Redeemer AC |