[quote=@Foster] Also, the barrel-life on the T-62AG is... not great... so it could probably swap guns between missions. In this case a crude reversion to 115mm to better use local ammunition supplies. This however will mean it'll only be able to carry 35 115mm tank-rounds instead of the factory-default of 40, or the modified load of 35+5 120mm tank rounds. The 115mm would also be useful for low-threat environments and would have a 'cheap' 4-piece platics/fiberglass thermal-sleeve from the 1983 pattern of upgrades. -tempted also to run methanol/gasoline in the external fuel-tanks and diesel or biodiesel in the internal fuel. As the post-fossil-fuel energy-system seems to favor methanol/ethanol. And the MM-1 mobile nuclear refinery was basically pulling Carbon-Monoxide from the atmosphere, then adding water and electricity/heat to get methanol to run tanks and jeeps and jets and stuff. --Things get really fun when you [url=https://en.wikipedia.org/wiki/Syngas]syngas the syngas[/url] into [url=https://en.wikipedia.org/wiki/Dimethyl_ether]a 1:1 biodiesel substitute[/url] [/quote] Talk about tank nerdery. Mine, well. It has standard 52 calibre longer barrel for better range. But it does mean the almost 8m long and not fun in urban traveling. But theit is many flavours of 155mm to choose from dep3nding on the mission.