Time travel would be boring becuase you could't take part in anything only observe. If you played around with the past you might ruin the future.
I'd love to go back in time and help out/ join in an epic battle but for example i might help say one side beat another in one war only to find that a third party could alter history by winning when they should't.
For example i'd love to have been a Russian sniper at Stalingrad, you know enemy at the gates style but what if inadvertantly by beating the nazis earlier in the war, they end up adapting for battle for the later period. Imagine the Nazis having a spare couple of divisions at D-Day if they did then that episode would have been the total anahilation of the Allies and thus a victory to Hitler.
If you think thats a bit extreme in reality 80% of the German war losses were caused by Russians so if the Germans could have got out of there then they would probably have lasted out D-Day.
Time travel really isn't that great if for five minutes of gun-toting fun you end up not only wishing you werent born but getting your wish
