Hmm, So lets see. Let’s start at microphones. So, the general choice of microphones would be a boom setup utilizing either a USB microphone or XLR microphone which requires an audio interface. I don’t think you would prefer to really utilize this particular setup though it offers the best in mic sound quality I can’t particularly touch on this as I don’t have as much experience in that department and would have to rely on others to touch on that particular area. However, the other mics would be something like Antlion Modmic which works very well and has different versions with varying prices. Personally, I would recommend either the USB or Wireless as they sound better than Uni. Outside of this if you pick up a headphone that has a 3.5mm or 2.5mm single connection detachable cable you can pick up a microphone like a V-moda for the 3.5mm or alternatives for the 2.5mm connections and these sound fine. These will run you around $20 or so for the v-moda but for antlion your looking at around $50-$120 depending on which version you go with. Please keep in mind though that if you decide to go with the streamer boom mic setup that using a Dynamic microphone is better than a regular condensor. This is because condensor mics pick up a ton of background noise and are designed for someone in a sound proof room while dynamics are designed more for live concerts so they tone out the background noise instead.
For amps, if you are looking for budget you can get away with buying the Schiit fulla,$99, for less demanding headphones or the Schiit Hel,$189, for better sound and a lot of power these are more budget options however they are both an amp and a dac together You also have the IFI zen Dac and Soundblasters X3 and G6 I will post a guide to some other combos that zeos recommends below. In seperate dedicated units for budget amps like the JDS Atom, Monoprice Liquid Spark, or the Schiit Magni 3+ / Heresy are all incredibly solid good sounding amps in around the $100 range pair though in your price range if your wanting to spend more I would say you’d be pretty good with something like an Schiit Asgard 3 + Topping E30 or Schiit Modius if you want a stack and more expensive option though the stack will cost you $400 and with the E30 your looking at $300. If you were to pair one of the budget amps listed above alongside an E30 you would be looking at around $220. All are good just some sound better than others.
In terms of headphones since you want to hear footsteps this makes things fairly limiting and will depend on some certain factors. To explain Competitive gamers typically go by the fact of wanting either neutral or recessed bass with mids and highs being forward alongside a larger soundstage and accurate imaging and if the highs are raised it’s even better as added treble helps you pin point sounds in the game a lot easier. The bass needs to be neutral or recessed so their is no rumble getting in the way of footstep sounds and other fps cue cards which is why this makes it fairly limiting in terms of headphone suggestions however you want an all rounder so let’s look at some that have a little bit of bass or are relatively neutral. Let’s start with more budget friendly options.
Philips SHP 9500: this doesn’t require a ton of power to back up and can make use of the V-moda microphone as a plug in which saves money fairly bright and is considered really good in gaming but also sounds pretty good. Has some bass but well rounded. The headphone can be seen sound around the $100 margin alongside around $20-$40 for the v-moda boom pro microphone makes this an incredibly good contender for budget gamers.
Beyerdynamic DT series: Beyerdynamic is known for having very bright headphones. In this particular case the DT 880 is the most ideal for competitive gaming since it lacks a bass presence with the 600 ohm being the best sounding these will go around $200 maximum and are semi open back. It’s cousins are not ideal for gaming, the 770 and 990, due to too much bass presence. A step up from here would be the DT 1990 which is something I consider the king in competitive gaming
Sennheiser HD 5xx series. This particular series is very well rounded. 58x jubilee is a very commonly used gaming headphone for being just very balanced all the way around and may be what you are looking for. Nothing stands out in the mix here but it has a nice open soundstage this particular headphone due to it’s soundstage is better for fps that have more close quarters so they can make use of that smaller more linear sound. In comparison you have the HD 598 and HD 599 virtually similar but these have more soundstage meaning they can place sounds from further away though these are discontinued you will have to find them from an alternative sell otherwise you will end up shelling out around $300 despite only being worth around $100. A bassier alternative here is the HD 558. The 58x jubilee is the only one here that uses duel sided plugs therefore has to make use of a modmic while the HD series can make use of a 2.5mm microphone detachable cable.
Audiotechnica series. These are fairly cheap in my opinion but if you search around you will see the words AD700x floating about. This is one of the gods of the competitive gaming world due to it’s budget price, they are like $70 or something now. The reason for this labelling is that the bass is heavily recessed and mids and highs are forward in other words this has one of the perfect sounds for competitive fps yet has it’s drawbacks. It has little seperation of sound, little brightness in comparison to some other headphones, bass is quite a bit recessed which may throw some people off as the headphone can be deemed to sound boring, and build quality leaves much to be desired as it’s pretty cheap plastic and the headband is pretty awful. A step up from the ad700x that fixes ever issue other than build quality is the ad1000x which is brighter and has full seperation of sound. The other headphone thats good is the M40x but you need to change the pads immediately and it has more bass presence still a good all rounder.
AKG series. The only one I can really recommend here is the K702 for competitive and k712 / k7xx if you want more bass and fun in the headphone. K702 again little bass but a extremely wide soundstage that offers some innaccurate sound placements though this is one of the other “best” gaming headphones usually seen in the $200-$300 price range they can be pad swapped to a yaxi pad to help with comfort and the build quality is much better than the audio technicas in my opinion.
Hifiman: be wary of this company as I recommend them as this particular headphone brand has issues with quality control. Anyway, He4xx from massdrop is really good but the one that really stands out in this budget is the Hifiman Sundara the main issue with this is it leaks a LOT of sound for being a open back and may feed through mics like the modmic without adjustments. However, in it’s pricepoint it’s hard to be beat and if you search in the right areas you can find these around the $250 margin. Not very bassy but lots of details and good highs
That’s about all I can think of at the top of my head right now and all I feel like typing at the moment lol. Heres a couple guides that may help as well.