A suggestion of a Brazilian Ground forces tech tree+ Argentinian tanks, Some Chilean tanks, and other South America tanks too.
| M8 greyhound
Reserve (1.0)   | ||
| M3 stuart
1.7   | ||
| M3A1 Stuart
2.3   | ||
| VBB-1
Reserve (1.0)   | ||
| T17 Deerhound
1.7   | ||
| CRM
2.3   | ||
| EE-T4 Ogum AA
1.0 | ||
| Tractor de Artillería Yacaré
1.3   | ||
| Cutia
1.0 | ||
| M24
3.7 | ||
| EE-9 M2 (37)
2.7   | ||
| Cruzader (75)
2.7   | ||
| M3A3 Lee
2.7   | ||
| Nahuel DL.43
3.0 | ||
| M4 early
3.7   | ||
| XM3D1
3.0   | ||
| M3A5 Lee
2.7 | ||
| VCTP
5.3   | ||
| Cruzader (105)
3.0 | ||
| Urutu 76mm
5.7   | ||
| M4 Composite
4.0   | ||
| Sherman Firefly
4.7 | ||
| Urutu 20mm
4.0 | ||
| M4A1E9
4.0 | ||
| A34 Comet
5.7 | ||
| M41B
6.0 | ||
| X1 Pioneiro
6.3   +1 | ||
| X1 Pioneiro
6.3   | ||
| X1A1 Carcará
6.3   | ||
| X1A2 Carcará
6.7   | ||
| EE-9 Cascavel M4
6.3   | ||
| EE-9 M2 (90)
6.7   | ||
| M4 Repotenciado
6.0   | ||
| Vehículo de Combate Artillería
6.3 | ||
| EE-3 Jararaca
6.7   | ||
| M-51
6.0 | ||
| M41C Caxias
7.0 | ||
| M24 HVMS 60mm
7.3   | ||
| Urutu Anticarro
7.0 | ||
| EE-9 Cascavel M7
7.7   | ||
| M60 Sherman
7.3   | ||
| MB-3 Tamoyo I
7.7   | ||
| MB-3 Tamoyo II
8.0 | ||
| VBTP-Guarani
7.3   | ||
| EE-11 Urutu AA
7.7 | ||
| X1 60mm HVMS
7.0 | ||
| Charrua
7.3   | ||
| M41C (F4)
7.3 | ||
| XLF-40
8.0 | ||
| TAM
8.7   | ||
| EE-9 TORC-30
8.0 | ||
| EE-17 Sucuri
8.0   | ||
| JaPz.K A2
8.3   | ||
| MB-3 Tamoyo III
8.3   | ||
| Leopard 1A5BR
9.0   | ||
| Gepard 1A2
8.7   | ||
| Tamoyo II-105
8.3 | ||
| Tiran-5Sh
8.3 | ||
| TAM 2C
9.7   | ||
| Leopard 2A4
10.0   | ||
| EE-18 Sucuri II
9.7 | ||
| EE-T1 Osório
10.0   | ||
| EE-T2 Osório
10.7   | ||
| Marder Roland 2
10.0   | ||
| EE-9U Cascavel
9.0 | ||