In regards to Precision Guidance, The knowledge itself is quite old, both the Germans and USA were using precision guided weapons in the later years of WW2 and although these were radio-controlled, the technology advanced quite quickly with the US developing an infra-red homing missile for anti-ship use in 1945.
Laser guided weapons were developed in the 1960s with the US making use of them and other PGMs from 1972 (specifically during the Vietnam War).

I've just found that the 20mm had 500 rounds of ammunition and the M60 had 2,000 rounds of ammunition for it.

Details of the XM800T ARSV

You have to dig around in your library of Jane's Armored Fighting Vehicle Guides from around 1976 to get the details of this.

The XM242 25 mm Chaingun was being developed to be fitted to the winner of the ARSV competition either the tracked or the wheeled. The test vehicles mounted the M139 20 mm autocannon.

Crew: 3
Weight Loaded: 8618 kg
Weight Empty: 7980 kg
Length: 4.673 m
Width: 3.438 m
Height Turret: 2.399 m
Height Hull: 1.663 m
Ground Clearance: 40.6 cm
Track Width: 0.482 m
Length of Track on Ground: 2.743 m
Ground Pressure: 0.32 kg/cm2
Maximum Road Speed: 88.5 km/h
Maximum Cross Country Speed: 25 km/h
Maximum Water Speed: 7.2 km/h
Acceleration 0-48 km/h: 10 seconds
Range: 725 km
Fuel: 397 liters
Amphibious: Yes
Gradient: 60%
Side Slope: 40%
Vertical Obstacle: 0.762 m
Trench: 1.828 m
Engine: GM 6V53 AT Diesel
Armament: M139 20 mm Cannon, M60D LMG
Ammunition: 500 rds 20 mm, 2000 rds 7.62 mm

I hope Paul is taking notes. He is the one who inspired this thread.

That is the day/night sight. It was developed by Delco Electronics Division of General Motors. It has high and low power day channels and high and low power night channels.

I found most of the data from a Blog describing the XM800T's development...

The M-139 was a licensed copy of the French HS.820 20mm autocannon, used in aircraft and AAA. When Oerlikon bought Hispano-Suiza, they replaced their current 20mm design with it. The US used it only for a/c, where it was equipped with 2x 75-rd magazines. (This weapon, while excellent, saw little US use, as we developed the rotary M61 cannon and put that on aircraft.)

Anyway, see the attached...

Xm-734. One of the developmental evolutions of the m113 leading to the Bradley. I find it fascinating.

Also m113s were tested with lav-25 turrets.

And as far as small arms, I have certain marine and special forces units equipped with Robinson m-96 rifles (greatly improved stoner-63s). More reliable, less sensitive, simple 7.62x39 conversion, and all the classic features that made the SEALS fall in love with it.

Air Defense Anti-Tank System (ADATS)
 

You could also put the Air Defense Anti-Tank System (ADATS) although is was adopted by the Canadian Army, it was originally to be a US Weapon System. This system would morph into Multi-Mission Effects Vehicle (MMEV) which was canceled in 2007

https://en.wikipedia.org/wiki/Air_De...ti-Tank_System

Thunderblast MBT
 

I give you the Thunderblast MBT


http://www.imfdb.org/wiki/Bulletproof_(1988)

I want one of these in my next game

I believe you will find the M917 ADATS in US Armored Vehicles sourcebook.

Uncle Ted

Here's one for you... the Midgetman missile system, with one of the coolest looking vehicles!

see attached or https://drive.google.com/file/d/0B1i...ew?usp=sharing

... in 2014, (16 years post TDM), the last known HML was driven through the Utah deserts by a woman only known as Furiosa.... :)

Uncle Ted

Attachment 3844The L7A3 105mm main gun and appliqué armor packacge, along with track skirts, offered improved protection and firepower relative to the factory model M48.


Attachment 3845
Arisgator, a modernized, amphibious upgrade for M113

I would kick a puppy and slap a toddler, if that would make that music go away.

Ugh.

My apologies. I didnt have to sound on

Just about the only thing 1940s Germany was good for was coming up with wacky weapons. One I ran across today for the first time is the Fliegerfaust/Luftfaust, which was supposed to be a man-portable anti-aircraft rocket system. It didn't really work, but it's at least interesting in theory. The Fliegerfaust B was a 9-tube launcher that weighed 6.5 kilograms (loaded), firing spin-stabilized 20mm high-explosive rockets. The firing method, per Ian Hogg, was that five rockets would fire from non-adjacent barrels, followed a tenth of a second later by the other four rockets, giving a dispersal pattern intended to improve the odds of a strike against an enemy aircraft. The warhead was the standard 20mm AA shell. Reloads were carried in a canvas "bucket" carried on the right hip via shoulder strap, and looked a bit like a speedloader for a revolver. It was barely deployed before the end of the war (three were photographed in rubble in Berlin), and accuracy problems were never ironed out, which made it of dubious effectiveness as an AA weapon.

I have that. Look under the description for the Sturmgewehr 44 in German Assault Rifles.

I have this too, on Canadian Tracked Antiaircraft Vehicles.

When the US was experimenting with the ADATS system, they put it on a Bradley chassis for better mobility. Then they went crazy and put it on a Bradley chassis, retained the Bradley turret minus the TOWs, with the ADATS missile tubes on the sides of the turret, and then topped the whole quivering mass off with an M-2HB sub-turret.

I have both on my Best Antiaircraft Vehicles That Never Were page.

Forgive us Pmulcahy11b, we're not worthy 😢

Running the rocket warhead through FF&S, it should be either damage -1 or 1, Burst 4, Pen Nil (it works out to Dam 0.40, Burst 4, Pen -4 for a TL 5, 2cm HE warhead).

Not sure where this came from? not sure if it is movie prop or something the the US Army was testing.

Are those AGM-114 Hellfire or AGM-65 Maverick missiles?

Appears to be a mock up of a Hellfire II.

Are you sure? the picture and truck are pre 2000 I think

The truck is a CUCV (a military version of a Chevy 2500) and the mount looks like tripod for a TOW in ground mount.

I think it is a clever photoshop. There has been on again off again prototypes for a ground launcher version of the hellfire.

The missile is a Hellfire and the mount looks like the hard point for a Apache.

I think it is a clever photoshop with elements taken from several sources.