  In this work we calculate important one loop SUSY-breaking parameters in
models with Dirac gauginos, which are implied by the existence of heavy
messenger fields. We find that these SUSY-breaking effects are all related by a
small number of parameters, thus the general theory is tightly predictive. In
order to make the most accurate analyses of one loop effects, we introduce
calculations using an expansion in SUSY breaking messenger mass, rather than
relying on postulating the forms of effective operators. We use this expansion
to calculate one loop contributions to gaugino masses, non-holomorphic SM
adjoint masses, new A-like and B-like terms, and linear terms. We also test the
Higgs potential in such models, and calculate one loop contributions to the
Higgs mass in certain limits of R-symmetric models, finding a very large
contribution in many regions of the $\mu$-less MSSM, where Higgs fields couple
to standard model adjoint fields.
