Slitherine

in the settings i set the option to have Para-T-corps. But when the time comes to have Para's i can still only uses Garrisons as them. I don't know if there is a certain time or event that happens to have corps-Para's.

A para corps consumes 3 para points so you need to have 3 points available. You won't have that until quite late in the war.

A para corps consumes 3 para points so you need to have 3 points available. You won't have that until quite late in the war.

is that why? dam i dident know thanks S-Berg

Para corps are considered to be very powerful and don't want them unleashed early in the war. It seems only USA had para corps (in 1944).
Usually you will be better off by having 3 para divisions because you can hold 3 hexes, but in some situations it would be better to have a para corps. One is if you place a para corps in a capital, fortress etc. That means it will be very hard to finish off this unit.

E. g. Germany had para units in French coastal fortresses in 1944. The result was that the Allies didn't capture this port cities, but only screened them. That hampers the Allied build-up in France because you can only unload transports in ports if the weather is not fair.

So para units can be used to hold important hexes.