[ she's going to hope this person is an actual person for a variety of reasons including, but not limited to, the knowledge that a) the covenant would die first before impersonating a human an b) she really doesn't want to deal with yet another threat here other than the raptors. though she may be super-human as far as strength and endurance go, she still has her limits and those are a lot closer than she likes to admit, especially since she doesn't have her armor.
she's faster than normal humans, taller, and stronger by far, as proven by the fact that she rams this new raptor with her shoulder. she's lucky that she was faster than it, too, as it didn't have a chance to deal with the element of surprise that she dealt it, slamming her shoulder into its throat. the move would have shattered bones on any normal human, but kelly doesn't even flinch. instead, she uses her momentum to snap its head back. a moment later the raptor is distracted by someone else behind it, a someone else who's going to be in the line of kelly's momentum.
she's about to issue a warning, but somehow this fight seems to be taking a turn. the raptor is dispatched easily between them and kelly turns warily towards the newcomer. ]