This is my current plans for a What-if group build on the IPMS Ireland forum and is more a "when-if" than a what-if :)
Currently there are 10 variants of the US Army Strykers:
M1129A & B are basically same vehicle with different armament. Similarily there are different sub-variants of the 1130 & 1132
However the US Army are currently trialing a new version with a 30mm canon in a turret. This is a direct result of recent Russian moves in Crimea and Ukraine.
https://www.armytimes.com/articles/army-receives-first-stryker-upgraded-with-30mm-cannonAnd now we get into the realms of speculation. In my opinion one of the glaring omissions of the Stryker line-up was an Air Defence version. So my entry will be an ADA Stryker which I believe we will eventually see in the real world also.
It will be based on the M1128 Mobile Gun System platform, as it already has a "turret", and the Legend Productions ADATS system for the M1113
Just need to order the base kit and Legend set on pay-day
If anyone wants to join the GB just google IPMS Ireland Forum, register and participate. It's open to all....