So for mobile ground air defense I did so research to make SAMs less squishy and more believable. Also you will have more variety than "SAM TRUCK" which end up getting strafed.
Infared Missiles: They lock on a heat source. Older missiles can be fooled by flares. New Systems have cameras mounted to lock on to the origional Heat Source.
List of Infared Missile systems
MIM-72 Chaparral:
Guidance: Infrared
Range: 9000 meters
Altitude: 4000 Meters
Speed: Mach 1.5
Warhead: 12.6kg HE Frag
4 missiles loaded, 8 in storage
Strela-10M:
Guidance: Infrared/Photocontrast
Range: 6900 meters
Altitude: 3500 Meters
Speed: Near Mach 2
Warhead: 12.6Kg He Frag
4 missiles loaded, 8 in storage
Crotale:
Guidance: Infrared/Radar/Electro-Optical
Range: 11000 meters
Altitude: 5000 meters
Speed: Mach 2.3
Warhead: 13kg HE Frag
can only carry 4 missiles
Radar Missiles: These are are guided via radar as well being manually guided to their target. However since they require radar guidance, the radar system/missile launcher on the ground can be jammed via jammer pod or destroyed with an anti-radiation missile.
Anti Radar Missiles can also be defeated by having the radar being constantly being flicked on and off.
list of Radar Missile Systems
Roland:
Guidance: Radar
Range: 8000 meters
Altitude: 5500 meters
Speed: Mach 1.6
Warhead: 6.5kg HE Frag
2 missiles loaded, carries 8 missiles
Nim-23 HAWK:
Guidance: Radar
Range: 25 kilometers
Altitude: 14000 kilometers
Speed: Mach 2.4
Warhead: 54kg HE Frag
3 missiles
Rapier:
Guidance: Radar
Range: 15 kilmeters
Altitude: 3000 meters
speed: Mach 2.5
Warhead: 1.4 kg HE Frag
8 missiles
OSA:
Guidance: Radar
Range: 10000 meters
Altitude: 5000 meters
Speed: Mach 2.4
Warhead: 40kg HE Frag
6 missiles
Newa:
Guidance: radar
Range: 35 kilometers
Altitude: 18000 meters
Speed: Mach 3
Warhead: 33kg HE Frag
4 S-125 Missiles
KUB:
Guidance: radar
Range: 24 Kilometers
Altitude: 14000 meters
Speed: Mach 2
Warhead: 59 HE Frag
BUK:
Guidance: Radar
Range: 25 kilometers
Altitude: 14,000 Meters
Speed: Mach 3
Warhead: 70kg HE Frag
4 missiles
Tor:
Guidance: Infrared, Radar
Range: 30 Kilometers
Altitude: 6000 Meters
Speed: Mach 2.8
Warhead: 15kg HE Frag
8 missiles
HQ-61:
Guidance: Radar
Range: 10 kilometers
Altitude: 8 Kilometers
Speed: Mach 3
Warehad: ~45kg HE Warhead
2 missiles
Stats were pulled from wikpedia, so accuracy on the information is not guaranteed.