1.Some sequences name are different between css and csgo.
I recommend you to check the name of the sequences before you compile.
2.CSS doesn't have "look_at" sequence, so if you press f key in game, the model will disappear.
I recommend you copy "idle" sequence in qc, and rename it to "look_at".
3.CSS M4A1 can't convert to CSGO M4A1, but it can convert to M4A4.
CSS SSG and AUG can't convert to CSGO SSG and AUG.
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