Add Rare Stress-Based Reload Variations

Add additional reload animations that can occasionally occur during intense combat situations. For example, the operator could fumble or drop the magazine while reloading. In a rarer variation, the magazine could strike the bodycam and cause the operator to briefly readjust it before continuing. These animations should remain uncommon during normal gameplay but become slightly more likely when the operator reaches a high stress level, such as while taking fire or being heavily suppressed.