I'm actually doing better starting off in this game than I did in previous games. I'm at about 1.05 k/d, where as the previous games I would always tank at the start and have a sub .65 k/d ratio until I got used to the maps and it would be a slow steady climb.
Normally I'd have up and down matches, some matches where I'd go 30 - 10 and other games where I'd be 10 - 30. This game I tend to be more even. I tend to have way more positive games than negitive. I typically only go negitive when the other team really chokes down on the spawn points or it's a map I absolutely hate.
This game REALLY caters to people running around mindlessly with the only true option being an smg, and perhaps in the future, M8's/AN94's
The game also caters to headglitching, which isn't good game designing, period. It's rarely an issue in the Halo series
The game, ironically caters to rushing, but every route you take is a rock, papers scissors scenario, due to how flankable every route is
I don't know, I've had a lot of success with the 870 and Type 25, but I play mostly objective matches. Headglitching, yeah, it's kind of a problem, but there are enough approaches that if someone doing it gets me twice, it's my fault.
I like the 870, it's pretty fun to make the smg users rage with it(thankfully it's more consistent than the MW3 shotguns were.) Also, ever try to kill the headglitchers above your spawn on hijacked, that's the only time that it is in fact impossible to kill them until you die a few times and maybe spawn behind cover or they get bored and leave in my experience.