We have them, they are just deployed in the wrong theaters. Also quantity is a major factor.
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One solution is the up-armoring of Hilux chassis using the existing plate manufactured by HIT and used in Mohafiz II. @Signalian and sir @Panzerkiel know more about that project.
This one photo of people venting out MRAP shows the scary picture. Shows how the state has failed. Its somewhere in tribal area ?