  We present results from a generic search for strongly produced supersymmetric
particles in pp collisions in the multijet + missing transverse momentum final
state. The data sample corresponds to 2.3 fb$^{-1}$ recorded by the CMS
experiment at $\sqrt{s}=13$ TeV. This search is motivated by supersymmetry
(SUSY) models that avoid fine-tuning of the higgs mass. In such models, certain
strongly produced SUSY particles, including the gluino and top squark, are
predicted to have masses on the order of a TeV. These particles also have some
of the highest production cross sections in SUSY and give rise to final states
with distinct, high jet multiplicity event signatures. To make the analysis
sensitive to a wide range of such final states, events are classified by the
number of jets, the scalar sum of the transverse momenta of the jets, the
vector sum of the transverse momenta of the jets, and the number of b-tagged
jets. No significant excess is observed beyond the standard model (SM)
expectation. The results are interpreted as limits on simplified SUSY models.
In these models, gluino masses as high as 1600 GeV are excluded at 95\% CL for
scenarios with low $\tilde{\chi}_{1}^{0}$ mass, exceeding the most stringent
limits set in by CMS at $\sqrt{s}=8$ TeV by more than 200 GeV in several
simplified models.
