I don't know if you guys are going to put the army but if you are, I'm gonna leave you with what the Portuguese Army and Navy use(Chose between the two)
Army:
Helicopter: EH-101 Merlin(
http://www.militaryphotos.net/forums/showthread.php?52736-Augusta-EH-101-Portugal)
(or Allouete III, but the Merlin is the most used)
Combat Vehicles: Both Defender(land Rover)(
http://www.operacional.pt/wp-content/uploads/2010/02/2-lanceiros-copy.jpg) and HMMWV (Humvee M1025 A2)
(http://www.areamilit...aspx?nn=25&p=77) Truck: UNIMOG 404 (
http://www.areamilitar.net/DIRECTORIO/ter.aspx?NN=107&P=77)
Weapon: Heckler & Koch Gewer 3 (G3)
Navy: Only the choppers and the weapons are different:
Chooper: Linkx with weels in the landing gear, not the version with the sky
The weapon is the HK MP5
Hope that helped! XD