Yeah, I'd say you're mint in the cardio department if you're running 5 miles while wearing your ruck. Your swimming shouldn't be too far behind either with that kind of endurance. The pull-ups will come, but if you want to speed it up, and you don't mind being sore for a couple days, look into weighted pull-ups. When I start feeling like my pull-ups are weak, I throw on the belt and hang a plate off of the chain, and bang out as many sets as it takes me until I reach 50. In between the sets I stretch my lats. It's a pretty painful session, but once I heal up I notice that my body feels lighter and 20 comes easy again.
I left out the ruck last weekend and just focused on legs in the gym. The next morning I was walking like a baby Giraffe! This is exactly what I needed because rucking wasn't making me sore. This little stunt put me back this week though, because yesterday my legs were still fucked and I couldn't run. This coming weekend I'm looking at doing a dead lift session in the morning before I ruck in the evening. I'm hoping it will boost my overall routine, and give me a little more drive.
I left out the ruck last weekend and just focused on legs in the gym. The next morning I was walking like a baby Giraffe! This is exactly what I needed because rucking wasn't making me sore. This little stunt put me back this week though, because yesterday my legs were still fucked and I couldn't run. This coming weekend I'm looking at doing a dead lift session in the morning before I ruck in the evening. I'm hoping it will boost my overall routine, and give me a little more drive.