Call of Duty has 25 win lines.  You can bet in your currency from 0.01 to 5 units on each win line.



EXPLODING SYMBOLS

    During the base game, a symbol may explode and become a Soldier symbol
    Win combinations are paid after the Soldier substitutes

CALL OF DUTY 4 FEATURE

The Call of Duty 4 Feature is awarded when 3 or more Scattered Logos appear

    Target and shoot enemies as they appear on the battlefield
    headshotsWin 2, 3 or 4 Free Games for every soldier hit with a bonus prize for a five-in-a-row killstreak awards an Airstrike.
    An Airstrike will award a 3x, 4x or 5x multipler for Free Games
    If there is no Airstrike, Free Games are played with a 2x multiplier
    Receive bonus prizes for destroying cars and barrels
    Free Games begin when the player is overcome by enemy fire
    If the Feature is retriggered during Free Games, the same number of
    Free Games are awarded without repeating the Feature
    Free Games are played at the lines and bet of the triggering game
    Free Game wins are added to payline and scatter wins