I'm working on my Skullpluggery achievement for Spy. For a while I thought it was straight-forward -- just point, pause (for accuracy), and fire. Worked everytime, until lately, where my lucky streak (as it would turn out to be such) ended. Now it's hit or miss (no pun intended) whether the headshot succeeds.
- The headshot doesn't register as a headshot at all (no crit), though clearly (on my screen) I was pointing directly at their head, both sniper and myself stationary.
- The headshot registers as a headshot (crit), but only takes the sniper down to about 20% HP, even having not likely been in an overhealed state given how long I was stalking.
I've now gotten suspicious of factors such as angle of attack, distance from target, duration of pause (to reach maximal accuracy), etc.; but these are just suspicions.
Are there any techniques to guarantee a single headshot kill (with the Ambassador) vs. a sniper? or will this always be limited by chance (random variables) in the game?
(Assume a stationary, non-overhealed sniper.)