Call Of Duty 3 and 4 compared

Comparing call of duty 3 and 4 i decide to play both to judge it. Firstly i tried 3 and i thought hmmm not bad, its realistic and fun but why do the germans never miss? Call of duty got glitched or hacked by someone so i thought "ok security is bad" . I also tried online version and the connection was ok but my friends and I lagged soooo much that i wasn't funny so the conectivity.... bad. So i played the whole thing, campaigns, multiplayer and other contents. The cutscenes were very short and i didn't really know what was happening except for one thing and that was that the germans were invading europe. Ok onto call of duty 4. Good game, very realistic and everything was better than 3. Security, funess, connectivity, and also no one lagged in multiplayer so i really liked the game. The only thing that wasn't good was that the campaigns were really short and there weren't that many to choose from. The enemy missed sometimes so that was good. So i thought ok, 3 has longer well everything, campaigns and stuff and 4 has better everything except short campaigns and not many. So the winner is call of duty 4. Plus i play 4 more anyways so uh yay. go cod 4