Call of Duty 2 Play Animation

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Short answer; no

Other than that yes,

1) Multiple models and play them using ent setmodel("xmodel/model[1-24]"); where 1-24 is the animation frames in models (it takes up lots of size though the higher the animation frames)
2) Use a player entity/bot or a clone of a player using player cloneplayer(); and use libcod to set the animation legsAnim/torsoAnim.