Killing Plant 42
Chris can save ammunition when fighting Plant 42 by using the combat knife. Only about a dozen hits with the knife are needed to kill it.
Herb mixtures
Note: You cannot mix more than one Blue or Red Herb in a mixture, and you cannot add a Red Herb or Blue Herb to two Green Herbs already mixed together
Green: Heals 25% of health
Green + Green: Heals 60% of health or randomly heals 8% (Danger only)
Green + Green + Green: Heals 100% of health
Green + Red: Heals 100% of health
Green + Blue: Heals 25% health and heals poison, or randomly restore 40% (Danger only)
Green + Green + Blue: Heals 60% health and heals poison, or randomly heal 80% (Danger only)
Green + Red + Blue: Heals 100% health and heals poison