This great game that I play since about 10 yrs now could get a little more intresting by having one more unit. Most people just see barracks as not something of intrest as they just need lot of food ressources which is also important as upkeep for all your mech units. Until midgame or if they were lucky with a country that has plenty of food at the beginning, most players do not use the power of barracks.
Additionally to that, Gas is one of the ressources which is too less important to look for as you need it only for: burning it for oil & coal, building some air fields, building balloons. Pioneers need Gas for their explosive stuff, balloon stuff with what they build bridges that can make units cross rivers or small gaps more quickly and so on.
### Pioneer ###
Pioneers are capable of finding ways through enemy or unknown territory. There are experienced in finding cover and are good in scouting. They are also used as first troops to repair or build important infrastructure such as bridges and trenches. There are also good in blowing smaller enemy buildings and infrastructures with the use of their bombs and handgranates.
Although pioneers receive military training, they are not as good as infantry or other military human units. But they know to defend if they need.
Requirement: Barracks lvl 1
Building Speed: 18hrs/ Barracks lvl
Upkeep: 20 Grain, 10 Gas
Cost: 800 Grain, 600 Gas, 4500 Money
Speed (land, air, see): 40km/h, -, 21km/h
View range: 180km
Dmg (attack) (land, air, see): 0.9, 0.1, 0.3
Dmg (def) (land, air, see): 0.5, 0.1, 0.1
Size factor: similar to Infantry
Thanks for your time reading and much appreciate your factual replies to that idea.