Situation: Quake 1v1, you know your opponent is a god in Counter-Strike but unfamiliar with Quake
Strategy: deny him hitscan weapons like the railgun as much as possible, since he knows how to use them (~ AWP) and doesn't know how to use slow projectile weapons; disengage more readily than you normally would, since you have a map knowledge advantage and gain bonuses faster than him
Tactics: keep picking up the railgun; do not allow the opponent to occupy railgun spawn for any length of time; disengage when low on health; use cover; go get mega-health and quad damage whenever they spawn; etc.
Mechanical execution: shoot fast and accurately; accelerate to top speed with minimum amount of strafe-jumps; etc.
Strategy: deny him hitscan weapons like the railgun as much as possible, since he knows how to use them (~ AWP) and doesn't know how to use slow projectile weapons; disengage more readily than you normally would, since you have a map knowledge advantage and gain bonuses faster than him
Tactics: keep picking up the railgun; do not allow the opponent to occupy railgun spawn for any length of time; disengage when low on health; use cover; go get mega-health and quad damage whenever they spawn; etc.
Mechanical execution: shoot fast and accurately; accelerate to top speed with minimum amount of strafe-jumps; etc.