"Combat Manuals increase experience gained (not Stance experience) by a specific percent, for a certain number of days. They can be used with Survival Manuals, but not Tactical Manuals. Back to Premium Items"@en . "Combat Manual"@en . . . "Combat Manuals increase experience gained (not Stance experience) by a specific percent, for a certain number of days. They can be used with Survival Manuals, but not Tactical Manuals. Back to Premium Items"@en .