C264 Feigning dead uselessness
Escaping with Anina seemed to be the wisest decision, but that was not the case. Escaping together was tantamount to giving his back to that South Asian sniper's comrade. However, Anina's speed was not fast, if he was caught up to, both him and Anina would be killed.
The other reason was that, since these snipers were all assassins hired by the Gu family