[OnePlus 7T Pro 5G McLaren Guides, News etc.] TEKHD:
This is the build.prop inside the super.img

# begin common build properties
# autogenerated by build/make/tools/buildinfo_common.sh
ro.system.build.date=Sat Nov 23 19:21:37 CST 2019
ro.system.build.date.utc=1574508097
ro.system.build.fingerprint=OnePlus/OnePlus7TProNR/OnePlus7TProNR:10/QKQ1.190716.003/1911231913:user/release-keys
ro.system.build.id=QKQ1.190716.003
ro.system.build.tags=release-keys
ro.system.build.type=user
ro.system.build.version.incremental=1911231913
ro.system.build.version.release=10
ro.system.build.version.sdk=29
ro.product.system.brand=OnePlus
ro.product.system.device=OnePlus7TProNR
ro.product.system.manufacturer=OnePlus
ro.product.system.name=OnePlus7TProNR
# end common build properties
#
#
# autogenerated by oem_log_prop.sh
persist.sys.kernel=yes
persist.sys.main=yes
persist.sys.system=yes
persist.sys.radio=yes
persist.sys.event=yes
persist.sys.crash=yes
persist.sys.qxdm=no
debug.sf.dump.primary=true
debug.sf.dump.external=true
debug.sf.dump.enable=true
debug.sf.dump=0
persist.sys.qsee=yes
persist.sys.tz=yes
persist.sys.assert.panic=false
persist.sys.assert.enable=false
persist.sys.cfu_auto=1
#
#
# autogenerated by oem_buildinfo.sh
ro.control_privapp_permissions=log
ro.opa.eligible_device=true
ro.setupwizard.mode=OPTIONAL
ro.com.google.clientidbase=android-oneplus
ro.com.google.clientidbase.ms=android-tmus-us-revc
ro.build.os_type=
persist.sys.oem.region=OverSeas
ro.build.product=OnePlus7TProNR
ro.product.device=OnePlus7TProNR
ro.build.date.Ymd=191123
ro.build.date.ymd=191123
ro.build.date.YmdHM=201911231936
ro.build.user=OnePlus
ro.build.flavor=OnePlus7TProNR-user
ro.build.description=OnePlus7TProNR-user 10 QKQ1.190716.003 1911231913 release-keys
ro.common.soft=OnePlus7TProNR
ro.build.release_type=release
ro.build.soft.version=O.14
ro.xxversion=v0.5
ro.build.kernel.id=4.14-G1911231936
ro.display.series=OnePlus 7T Pro 5G
ro.build.ota.versionname=OnePlus7TProNROxygen_13_1911231936
ro.build.version.ota=OnePlus7TProNROxygen_13.O.14_GLO_014_1911231936
ro.build.soft.majorversion=A
ro.product.brand=OnePlus
ro.product.manufacturer=OnePlus
persist.sys.timezone=America/New_York
ro.rom.version=10.0.13.HD61CB
ro.imei.check=yes
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=QKQ1.190716.003
ro.build.keys=release-keys
ro.build.version.incremental=1911231913
ro.build.version.sdk=29
ro.build.version.preview_sdk=0
ro.build.version.preview_sdk_fingerprint=REL
ro.build.version.codename=REL
ro.build.version.all_codenames=REL
ro.build.version.release=10
ro.build.version.security_patch=2019-10-01
ro.build.version.base_os=
ro.build.version.min_supported_target_sdk=23
ro.build.date=Sat Nov 23 19:21:37 CST 2019
ro.build.date.utc=1574508097
ro.build.type=user
ro.build.user=jenkins
ro.build.host=rd-build-91
ro.build.tags=release-keys
ro.build.flavor=hotdogg-user
ro.build.system_root_image=false
ro.build.ab_update=true
ro.product.cuptsm=ONEPLUS|ESE|01|02|80T
# ro.product.cpu.abi and ro.product.cpu.abi2 are obsolete,
# use ro.product.cpu.abilist instead.
ro.product.cpu.abi=arm64-v8a
ro.product.cpu.abilist=arm64-v8a,armeabi-v7a,armeabi
ro.product.cpu.abilist32=armeabi-v7a,armeabi
ro.product.cpu.abilist64=arm64-v8a
ro.product.locale=en-US
ro.wifi.channels=
# Do not try to parse thumbprint
# end build properties

#
# from vendor/oneplus/config/msmnile/system.prop
#
#
# system.prop for sdm845
#

rild.libpath=/vendor/lib64/libril-qc-hal-qmi.so
#rild.libargs=-d /dev/smd0
persist.rild.nitz_plmn=
persist.rild.nitz_long_ons_0=
persist.rild.nitz_long_ons_1=
persist.rild.nitz_long_ons_2=
persist.rild.nitz_long_ons_3=
persist.rild.nitz_short_ons_0=
persist.rild.nitz_short_ons_1=
persist.rild.nitz_short_ons_2=
persist.rild.nitz_short_ons_3=
ril.subscription.types=NV,RUIM
DEVICE_PROVISIONED=1
# Set network mode to (T/L/G/W/1X/EVDO, T/L/G/W/1X/EVDO) for 7+7 mode device on DSDS mode
ro.telephony.default_network=22,22

dalvik.vm.heapsize=36m
dev.pm.dyn_samplingrate=1

#ro.hdmi.enable=true
#persist.speaker.prot.enable=false
qcom.hw.aac.encoder=true
#
# system props for the cne module
#
persist.vendor.cne.feature=1

#system props for the MM modules
media.stagefright.enable-player=true
media.stagefright.enable-http=true
media.stagefright.enable-aac=true
media.stagefright.enable-qcp=true
media.stagefright.enable-fma2dp=true
media.stagefright.enable-scan=true
media.stagefright.thumbnail.prefer_hw_codecs=true
mmp.enable.3g2=true
media.aac_51_output_enabled=true
mm.enable.smoothstreaming=true

#ifdef VENDOR_EDIT
# wangbuqing@media, 2019/07/10, [HD-1693],use qcom media profile
media.settings.xml=/vendor/etc/media_profiles_vendor.xml
#endif

#13631487 is decimal sum of supported codecs in AAL
#codecs:(PARSER_)AAC AC3 AMR_NB AMR_WB ASF AVI DTS FLV 3GP 3G2 MKV MP2PS MP2TS MP3 OGG QCP WAV FLAC AIFF APE DSD MOV XVID
#ifdef VENDOR_EDIT
# wangbuqing@media, 2019/06/12, [GCEQ-182] Sync from SM8150P ,Add codecs:DIVX & DIVXHD and remove ogg
#vendor.mm.enable.qcom_parser=63963135
#vendor.mm.enable.qcom_parser=67092479
# wangbuqing@media, 2019/08/23, [EIDQ-4020]remove qcom FLAC-8bit , PARSER_FLAC[0x00020000]
vendor.mm.enable.qcom_parser=66961407
#endif
persist.mm.enable.prefetch=true

#ifdef VENDOR_EDIT
# fred.li@media, 2019/07/29, [GCEQ-3488] Sync from SM8150P ,for audio config
#Netflix custom property
ro.netflix.bsp_rev=Q855-16947-1
#endif

#
# system props for the data modules
#
ro.vendor.use_data_netmgrd=true
persist.vendor.data.mode=concurrent

#system props for time-services
persist.timed.enable=true

#
# system prop for opengles version
#
# 196608 is decimal for 0x30000 to report version 3
# 196609 is decimal for 0x30001 to report version 3.1
# 196610 is decimal for 0x30002 to report version 3.2
ro.opengles.version=196610

#
# System props for telephony
# System prop to turn on CdmaLTEPhone always
telephony.lteOnCdmaDevice=1

#Simulate sdcard on /data/media
#
persist.fuse_sdcard=true

#system prop for Bluetooth SOC type
vendor.bluetooth.soc=cherokee
ro.bluetooth.library_name=libbluetooth_qti.so
persist.vendor.btstack.enable.splita2dp=true
persist.vendor.btstack.a2dp_offload_cap=sbc-aptx-aptxtws-aptxhd-aac-ldac
persist.vendor.btstack.enable.twsplus=true

#system prop for wipower support
ro.bluetooth.emb_wp_mode=false
ro.bluetooth.wipower=false

#
#snapdragon value add features
#
ro.qc.sdk.audio.ssr=false

##fluencetype can be "fluence" or "fluencepro" or "none"
ro.qc.sdk.audio.fluencetype=none
persist.audio.fluence.voicecall=true
persist.audio.fluence.voicerec=false
persist.audio.fluence.speaker=true

#system prop for RmNet Data
persist.rmnet.data.enable=true
persist.data.wda.enable=true
persist.data.df.dl_mode=5
persist.data.df.ul_mode=5
persist.data.df.agg.dl_pkt=10
persist.data.df.agg.dl_size=4096
persist.data.df.mux_count=8
persist.data.df.iwlan_mux=9
persist.data.df.dev_name=rmnet_usb0

#property to enable user to access Google WFD settings
persist.debug.wfd.enable=1
##property to choose between virtual/external wfd display
persist.sys.wfd.virtual=0

# enable tunnel encoding for amrwb
tunnel.audio.encode = true

#ifdef VENDOR_EDIT
# fred.li@media, 2019/07/29, [GCEQ-3488] Sync from SM8150P ,for audio config
#Buffer size in kbytes for compress offload playback
#audio.offload.buffer.size.kb=32
#endif

#Enable offload audio video playback by default
av.offload.enable=true

#enable voice path for PCM VoIP by default
use.voice.path.for.pcm.voip=true

# system prop for NFC DT
ro.nfc.port=I2C

#ifdef VENDOR_EDIT
# fred.li@media, 2019/07/29, [GCEQ-3488] Sync from SM8150P ,for audio config
#enable dsp gapless mode by default
#audio.offload.gapless.enabled=true
#endif

#initialize QCA1530 detection
sys.qca1530=detect

#Enable stm events
persist.debug.coresight.config=stm-events

#hwui properties
ro.hwui.texture_cache_size=72
ro.hwui.layer_cache_size=48
ro.hwui.r_buffer_cache_size=8
ro.hwui.path_cache_size=32
ro.hwui.gradient_cache_size=1
ro.hwui.drop_shadow_cache_size=6
ro.hwui.texture_cache_flushrate=0.4
ro.hwui.text_small_cache_width=1024
ro.hwui.text_small_cache_height=1024
ro.hwui.text_large_cache_width=2048
ro.hwui.text_large_cache_height=1024

config.disable_rtt=true

#Bringup properties
persist.sys.force_sw_gles=1
persist.vendor.radio.atfwd.start=true
ro.kernel.qemu.gles=0
qemu.hw.mainkeys=0

#ifdef VENDOR_EDIT
#lifei@OnLineRD.MultiMediaService, 2015/12/23, Modify for support offload Is greater than 30s Audio source
audio.offload.min.duration.secs=30
#Turn on the "ro.audio.monitorRotation" property and use RotationHelper to control left and right channel switching.
ro.audio.monitorRotation=true
#lifei@OnLineRD.MultiMediaService, 2017/09/25, add for support wechat voice and video msg
nxpWechatDebugEnable=1
#endif
#ifdef VENDOR_EDIT
#yanweibo@MultiMediaService,20180322,reduce video swdev logs,default only print error logs
vendor.vidc.debug.level=1
vendor.swvdec.log.level=1
#endif

#ifdef VENDOR_EDIT
#lifei@OnLineRD.MultiMediaService, 2018/1/17,use for hac feature
persist.vendor.audio.hac.enable=false
#endif
#Expose aux camera for below packages
#ifndef VENDOR_EDIT
#vendor.camera.aux.packagelist=org.codeaurora.snapcam
#else
vendor.camera.aux.packagelist=org.codeaurora.snapcam,com.oneplus.factorymode,com.oneplus.camera,com.oneplus.healthcheck
persist.vendor.camera.privapp.list=com.oneplus.camera
#endif
#ifdef VENDOR_EDIT
persist.vendor.camera.oissr.debug=0
#endif

#enable IZat OptInApp overlay
persist.vendor.overlay.izat.optin=rro

#Property to enable Mag filter
persist.vendor.sensors.enable.mag_filter=true

#property to enable HWC for VDS
debug.sf.enable_hwc_vds=1

#property to latch unsignaled buffer
debug.sf.latch_unsignaled=1

#ifdef VENDOR_EDIT
persist.vendor.naruto.light.support=true
#endif

#ifdef VENDOR_EDIT
#ethan.peng@CONNECTIVITY, 2019/05/12, add osnlp.package
# ro.location.osnlp.package sets the name of default
# OS sepecific network location provider package to use
# ro.location.osnlp.region.package is set to the name
# of the alternative network location provider package
# network location provider is not functional
ro.location.osnlp.region.package=com.amap.android.location
#endif

# ifdef VENDOR_EDIT
# simon.ma@SYSTEM, 2019/05/16, add for GCE-12831 to enable bservice limit
ro.vendor.qti.sys.fw.bservice_enable=true
ro.vendor.qti.sys.fw.bservice_limit=8
ro.vendor.qti.sys.fw.bservice_age=5000
# endif

#ifdef VENDOR_EDIT
#johnny.tsai@oneplus.net,2019/08/14,It is Google design not to bring down Data call when Wifi is up for inger timer
persist.netmon.linger=5000
#endif

#ifdef VENDOR_EDIT
#if OP_FEATURE_MM_24BIT == 1
#liuhaituo@MM.Audio, 2019/07/15, use 24bit offload playback
persist.vendor.audio_hal.dsp_bit_width_enforce_mode=24
#endif
#endif

# ifdef VENDOR_EDIT
# clark.lei@Connectivity, 2019/09/25, add for solve audio crash
persist.vendor.bt.a2dp.hal.implementation=true
# endif
# end of vendor/oneplus/config/msmnile/system.prop

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.treble.enabled=true
net.bt.name=Android
ro.vendor.qti.va_aosp.support=1

It's definitely 10.0.13.HD61CB

ro.rom.version=10.0.13.HD61CB
ro.build.version.security_patch=2019-10-01

I will post a series of files so EVERYONE can compare Global Firmware vs TMO 5G Firmware... (all 4 super.img partitions from both firmwares) That should help a lot in the dev and research area... You can use an app like Beyond Compare and you can literally setup left side Global Firmware and Right side TMO 5G Firmware. (and you will be able to compare literally everything between the 2 firmwares)