One of my favorite topics!!! ...and I thought I was the only one concerned with theoretical TO&Es.
The backbone of my Army would be infantry, of course, who are trained in:
-M-16A2
-
...in basic
-M-14
-M203
-FN-MAG/M-240G
-M249 SAW
-AT-4 LAW
-Claymore mines
...in follow-on training
-M2 .50
-Mark 19 40mm
-M-40A1/A2/A3 sniper rifle
-SMAW
-Stinger missile
-Javelin
-TOW
-Arty/Air direction
...in specialist training
and familiarization training with just about anything the grunt may run into on the battlefield, such as Klatchs, Mausers, handguns, land mines, Bradley IFV 25mm, etc.
I think my army would be small, expensive, and very professional. Something like 7 year minimum enlistments like Commonwealth militarys. Live fire training OFTEN. The infantry would be multi-task capable, such as heliborne, mechanized, or foot assault, and individual weapons would be configured depending on the mission, such as:
8 man Rifle squad, mechanized, MOUT:
-2 x M-16/M-203
-1 x SMAW
-1 x M-240G
-2 x M-16 (assistant MG and SMAW men)
-2 x M-14
...all in some APC which doesn't exist yet, like a super-Bradley with a semi-auto 120mm mortar for busting buildings.