In the game of capture-the-flag, running toward your flag screaming is not a strategy. A strategy is plan you make with your teammates––some of you distract, some of you sneak in, the fastest makes a dash.
The word strategy was developed to describe plans people made for war, and strategies often rely on certain chief assets––the British strategy for world domination relied on its naval superiority, our strategy for this game relies on the other team's poor level of fitness. After they're exhausted, we go for the goal.