possibly not. the bayonets look very different, and those Minot figures look to have a smooth sculped metal base to the figures, but the mystery ones don't.
The sculpted base probably rules out Falcon (the only figures I have seen from them were smooth topped) and likewise Minifigs.
The lack of figure variants possibly rules out Foundry and Old Glory.
Dixon and Artizan don't do Askaris.
so they are a puzzle.