I keep seeing medic players equipping Crossbow (even though they never actually use it) for extra healing; but the stock Syringe Gun with the mad milk syringes upgrade will give tons of healing.

The mad milk syringes upgrade doesn't have the same expenses as the recharge rate on Scout's mad milk bottle.

1. Upgrade only costs 200 upfront to get.
2. The firing rate of the syringe gun will determine how fast you can apply a duration of milk.

Each mad milk syringe applies 0.5 seconds of milk; the maximum duration of the applied milk can be 2 seconds.

The Mad milk bottle will apply 10 seconds of mad milk; but it can only be used at an interval.

• With healed targets, the mad milk bottle would not be able to constantly apply the effect; because the duration of mad milk on a healed target will get reduced to 2.5 seconds; mad milk's minimum recharge rate (from the recharge upgrades) is 5 seconds.
• However, the mad milk syringes will be able to consistently apply mad milk; the reload time is 1.6 seconds, which is under 2.5 seconds of the mad milk duration on a healed target.