1000 squats - possibly given I have the time
700 push ups - not on my best day 120 tops before i cannot support my body weight without a break, greatly weakened afterwards.
700 sit ups - Yea, if I had to I could do 700.
2 mile run carrying a man of near equal weight on their back - no time limit? yea i could do it over the span of a hour or two.
Repeated runs up and down bleacher steps - i do that already.
Bear-crawls up steep hills - bear crawls are easiest going up a hill, compared to bear crawls on flat ground.
lugging heavy barrels of water and sand bags up steep hills
But all in one day? No chance in hell. If you could do this, you have the heart of a lion, or your on he juice.