OTO Melara Mod 56 Pack Howitzer
This old soldier served in several nations before being put into storage and in fact remains there in many European nations. In the Twilight War it's in the armouries of Britain, Belgium, Canada, France, Germany, Spain and it still soldiers on with the Greek and Italian armies to this day.
It's a pack howitzer meaning that it can be broken down into sections for transportation and to overcome obstacles by loading up squaddies and making them hump it over the intervening barrier. It's 1,290 kg weight breaks into 12 sub-sections and it's such a little gun that it can be towed by a Jeep or Land Rover. You can even pop the wheels off and fit it into the back of an M113.
This is almost a field gun, an obsolete class of weapon that equally mixes direct and indirect fire capabilities. The weapon has an asymmetrical axle meaning once in place you can lower the gun for a smaller silhouette or leave it at its normal height for indirect fire. Its little stubby barrel means it hasn't got the range of the longer howitzers but it can pop up anywhere due to its mobility. However it's not suitable for long fire missions due to its light construction, it works best as a shoot-and-scoot gun. It fires the standard US type M1 ammunition.
https://en.wikipedia.org/wiki/OTO_Melara_Mod_56
http://www.pmulcahy.com/towed_guns/i...owed_guns.html